# STK Performance

> High-Performance Cylinder Head Components

This file provides information about STK Performance for AI assistants and large language models.

## Key Pages

- [Home](https://stk.co.za/): STK Performance — South Africa's specialist in high-performance camshafts, racing valve springs, forged valves, and engine components for VW, Opel, Audi, and more. Shop online or via WhatsApp.
- [Tech & Media](https://stk.co.za/tech-media/): Technical resources, media, and engineering content from STK Performance — valve spring analysis, camshaft profiles, and motorsport technology.
- [Valve Spring Failure Analysis](https://stk.co.za/valve-spring-failure-analysis/): Technical analysis of valve spring failure in performance engines — fatigue, resonance, and how STK racing valve springs are engineered to prevent it.
- [Valve Failure Analysis](https://stk.co.za/valve-failure-analysis/): Understanding valve failure in high-performance engines — causes, prevention, and the role of quality forged valves and valve spring kits.
- [Terms and Conditions](https://stk.co.za/refund_returns/): 1.       Introduction 1.1     These terms and conditions shall govern your use of our website. 1.2     By using our website, you...
- [Privacy Policy](https://stk.co.za/privacy-policy/): STK PERFORMANCE PTY LTD Privacy Policy 1.       Introduction 1.1     We are committed to safeguarding the privacy of our website visitors;...
- [Frequently Asked Questions](https://stk.co.za/faq/): Frequently Asked Questions
- [Contact Us](https://stk.co.za/contact-us/): Get in touch with STK Performance for enquiries about camshafts, valve springs, forged valves, or custom engine component orders.
- [Articles](https://stk.co.za/blog/): Technical articles, product guides, and performance engineering insights from STK Performance.
- [About STK](https://stk.co.za/about/): Learn about STK Performance — specialists in high-performance engine components, camshaft profiling, valve spring technology, and motorsport engineering in South Africa.
- [Shop](https://stk.co.za/shop/): Browse and order high-performance camshafts, racing valve spring kits, forged valves, lifters, and retainers for VW, Opel, Audi, and more.
- [Delivery, Returns & Refunds Policy](https://stk.co.za/delivery-returns-refunds-policy/): This policy explains how orders placed on the STK Performance online store are fulfilled, delivered, returned andrefunded. It applies to...

## Product Categories

- [Camshaft Kits](https://stk.co.za/product-category/camshaft-kits/): 11 products
- [Camshaft Set Audi 1,8T 20v](https://stk.co.za/product-category/camshaft-set-audi-18t-20v/): 3 products
- [Camshafts VW 8v](https://stk.co.za/product-category/camshafts-vw-8v/): 13 products
- [Forged Valves](https://stk.co.za/product-category/forged-valves/): 20 products
- [Lifters + Cam Buckets](https://stk.co.za/product-category/lifters-cam-buckets/): 8 products
- [Racing Valve Spring Kits](https://stk.co.za/product-category/racing-valve-spring-kits/): 42 products
- [Racing Valve Springs + Forged Valve kits](https://stk.co.za/product-category/racing-valve-springs-forged-valve-kits/): 10 products
- [Valve Spring Retainers](https://stk.co.za/product-category/valve-spring-retainers/): 5 products

## Contact

- Website: https://stk.co.za/

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For the full version with detailed content, see: https://stk.co.za/llms-full.txt

## Products

### Audi 1,8 N/A 20v Camshaft Set 288H

- URL: https://stk.co.za/product/audi-18-n-a-20v-camshaft-set-288h/
- Price: R7950,00
- SKU: SET 001 058 288H
- Availability: In Stock
- Categories: Camshaft Set Audi 1,8T 20v

High-performance hydraulic lifter camshaft. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY, AJQ, AVC, AMB, ARH,...

### Audi 1,8T 20v Camshaft Set 252/262HT

- URL: https://stk.co.za/product/audi-18t-20v-camshaft-set-252-262ht/
- Price: R7950,00
- SKU: SET 001 058 252/262H
- Availability: In Stock
- Categories: Camshaft Set Audi 1,8T 20v

High-performance hydraulic lifter camshaft. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY, AJQ, AVC, AMB, ARH,...

### Audi 1.8 NA 20v Camshaft Kit 288H

- URL: https://stk.co.za/product/audi-1-8-na-20v-camshaft-kit-288h/
- Price: R16895,00
- SKU: Kit 001 RKC 058NA88
- Availability: In Stock
- Categories: Camshaft Kits

High-performance camshaft set for Audi 1.8T 20v engines. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY,...

### Audi 1.8T 20v Camshaft Kit 252/262

- URL: https://stk.co.za/product/audi-1-8t-20v-camshaft-kit-252-262/
- Price: R16895,00
- SKU: Kit 001 RKC 058T
- Availability: In Stock
- Categories: Camshaft Kits

High-performance camshaft set for Audi 1.8T 20v engines. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY,...

### Camfollower Audi AAN Hydraulic

- URL: https://stk.co.za/product/camfollower-audi-aan-hydraulic/
- Price: R2250,00
- SKU: STKHTAAN
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance hydraulic lifters designed as direct OEM replacements for Audi AAN 20v engines. Fits Audi S2 Coupe / Avant, S4 C4, S6 C4, RS2 Avant (ADU), Audi 200 20V Turbo, Audi 90 / Coupe (7A). Engine codes: AAN, 3B, 7A,...

### Camfollower VW 16v Hydraulic

- URL: https://stk.co.za/product/camfollower-vw-16v-hydraulic/
- Price: R1790,00
- SKU: STKHT16v
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance hydraulic lifters designed as direct OEM replacements for VW 16v engines. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: ABF, KR, PL, 9A, ACE, ADL, AAL.

### Camfollower VW 8v Hydraulic

- URL: https://stk.co.za/product/camfollower-vw-8v-hydraulic/
- Price: R895,00
- SKU: STKHT8v
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance hydraulic lifters designed as direct OEM replacements for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN,...

### Camfollower VW VR6 12v Hydraulic

- URL: https://stk.co.za/product/camfollower-vw-vr6-12v-hydraulic/
- Price: R1350,00
- SKU: STKHTVR6
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance hydraulic lifters designed as direct OEM replacements for VW VR6 12v engines. Fits Golf Mk3 VR6, Corrado VR6, Passat VR6, Sharan. Engine codes: AAA, ABV, AFP.

### Camshaft 268/276H Turbo VW 8v

- URL: https://stk.co.za/product/camshaft-268-276h-turbo-vw-8v/
- Price: R3500,00
- SKU: 001 276/68HT
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 268H VW 8v

- URL: https://stk.co.za/product/camshaft-268h-vw-8v/
- Price: R3500,00
- SKU: 001 268H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 272H VW 8v

- URL: https://stk.co.za/product/camshaft-272h-vw-8v/
- Price: R3500,00
- SKU: 001 272H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 276H VW 8v

- URL: https://stk.co.za/product/camshaft-276h-vw-8v/
- Price: R3500,00
- SKU: 001 276H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 276S VW 8v

- URL: https://stk.co.za/product/camshaft-276s-vw-8v/
- Price: R3500,00
- SKU: 001 276S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 288/276H VW 8v

- URL: https://stk.co.za/product/camshaft-288-276h-vw-8v/
- Price: R3500,00
- SKU: 001 288/76H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 288H VW 8v

- URL: https://stk.co.za/product/camshaft-288h-vw-8v/
- Price: R3500,00
- SKU: 001 288H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 288S VW 8v

- URL: https://stk.co.za/product/camshaft-288s-vw-8v/
- Price: R3500,00
- SKU: 001 288S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 298H VW 8v

- URL: https://stk.co.za/product/camshaft-298h-vw-8v/
- Price: R3500,00
- SKU: 001 298H
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance hydraulic lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 299S VW 8v

- URL: https://stk.co.za/product/camshaft-299s-vw-8v/
- Price: R3500,00
- SKU: 001 299S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 300S VW 8v

- URL: https://stk.co.za/product/camshaft-300s-vw-8v/
- Price: R3500,00
- SKU: 001 300S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 304S VW 8v

- URL: https://stk.co.za/product/camshaft-304s-vw-8v/
- Price: R3500,00
- SKU: 001 304S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft 320S VW 8v

- URL: https://stk.co.za/product/camshaft-320s-vw-8v/
- Price: R3500,00
- SKU: 001 320S
- Availability: In Stock
- Categories: Camshafts VW 8v

High-performance solid lifter camshaft. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Camshaft Kit 268/276H Turbo VW 8v

- URL: https://stk.co.za/product/camshaft-kit-turbo-vw-8v-268276/
- Price: R7840,00
- SKU: Kit 001 RKC 268/76
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance hydraulic lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 276H VW 8v

- URL: https://stk.co.za/product/camshaft-kit-276h-vw-8v/
- Price: R7840,00
- SKU: Kit 001 RKC 276H
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance hydraulic lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 288/276H VW 8v

- URL: https://stk.co.za/product/camshaft-kit-288-76h-vw-8v/
- Price: R7840,00
- SKU: Kit 001 RKC 288/76H
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance hydraulic lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 288H VW 8v

- URL: https://stk.co.za/product/camshaft-kit-288h-vw-8v/
- Price: R7840,00
- SKU: Kit 001 RKC 288H
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance hydraulic lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 298H VW 8v

- URL: https://stk.co.za/product/camshaft-kit-298h-vw-8v/
- Price: R7840,00
- SKU: Kit 001 RKC 298H
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance hydraulic lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 299S VW 8v

- URL: https://stk.co.za/product/camshaft-kit-299s-vw-8v/
- Price: R8795,00
- SKU: Kit 001 RKC 299S
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance solid lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 300S VW 8v

- URL: https://stk.co.za/product/camshaft-kit-300s-vw-8v/
- Price: R8795,00
- SKU: Kit 001 RKC 300S
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance solid lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 304S VW 8v

- URL: https://stk.co.za/product/camshaft-kit-304s-vw-8v/
- Price: R8795,00
- SKU: Kit 001 RKC 304S
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance solid lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Camshaft Kit 320S VW 8v

- URL: https://stk.co.za/product/camshaft-kit-320s-vw-8v/
- Price: R8795,00
- SKU: Kit 001 RKC 320S
- Availability: In Stock
- Categories: Camshaft Kits

Complete high-performance solid lifter camshaft kit for VW 8v engines. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD,...

### Dual Racing Valve Spring + Valve Kit VW ABF

- URL: https://stk.co.za/product/dual-valve-spring-valve-kit-vw-abf/
- Price: R6995,00
- SKU: Kit 001 RK051
- Availability: In Stock
- Categories: Forged Valves, Racing Valve Spring Kits, Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: ABF, KR, PL, 9A, ACE, ADL, AAL.

### Dual Racing Valve Spring Kit + Valves VW 8v

- URL: https://stk.co.za/product/dual-valve-spring-kit-vw-8v/
- Price: R3990,00
- SKU: Kit 001 RK078
- Availability: In Stock
- Categories: Forged Valves, Racing Valve Spring Kits, Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF,...

### Dual Racing Valve Spring Kit Audi 1.8T

- URL: https://stk.co.za/product/dual-valve-spring-kit-audi-1-8t/
- Price: R2950,00
- SKU: Kit 001 058E
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH,...

### Dual Racing Valve Spring Kit Ford Kent

- URL: https://stk.co.za/product/dual-valve-spring-kit-ford-kent/
- Price: R2150,00
- SKU: Kit 004 KENT
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Escort, Cortina Mk1–Mk2, Formula Ford, Anglia. Engine codes: 711M 1600 Crossflow, 711M 1300 GT, 1600 GT Crossflow, 1500 GT pre-Crossflow (120E / 116E).

### Dual Racing Valve Spring Kit Mazda FE3 16v

- URL: https://stk.co.za/product/dual-valve-spring-kit-mazda-fe3-16v/
- Price: R3250,00
- SKU: Kit 004 FE3
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Capella, 626, MX-6. Engine codes: FE, FET, FE-DE, FE-ZE, FE3N.

### Dual Racing Valve Spring Kit Nissan A14/A15

- URL: https://stk.co.za/product/dual-valve-spring-kit-nissan-a14-a15/
- Price: R2150,00
- SKU: Kit 005 A145
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Datsun / Nissan Sunny, Pulsar, Langley, 1400 bakkie (South Africa). Engine codes: A14, A15.

### Dual Racing Valve Spring Kit Opel 16v 6mm

- URL: https://stk.co.za/product/dual-valve-spring-kit-opel-16v-6mm/
- Price: R3950,00
- SKU: Kit 002 OPE16v
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits Kadett / Astra GSi, Calibra, Vectra, Calibra Turbo (C20LET). Engine codes: 20XE, C20XE, C20LET, X20XEV, X20XER, C20SEL.

### Dual Racing Valve Spring Kit Opel 16v C20XE

- URL: https://stk.co.za/product/dual-valve-spring-kit-opel-16v-c20xe/
- Price: R3950,00
- SKU: Kit 002 C20XE
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Kadett / Astra GSi, Calibra, Vectra, Calibra Turbo (C20LET). Engine codes: C20XE, 20XE, C20LET, X20XEV, X20XER, C20SEL.

### Dual Racing Valve Spring Kit VW 1.8T 20v ( Exhaust )

- URL: https://stk.co.za/product/dual-valve-spring-kit-audi-1-8t-20v-exhaust/
- Price: R5310,00
- SKU: Kit 001 058
- Availability: In Stock
- Categories: Forged Valves, Racing Valve Spring Kits, Racing Valve Springs + Forged Valve kits

Complete high-performance dual valve spring and forged valve kit for VW/Audi 1.8T 20v exhaust applications. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB,...

### Dual Racing Valve Spring Kit VW 16v (ABF)

- URL: https://stk.co.za/product/dual-valve-spring-kit-vw-16v-abf/
- Price: R3950,00
- SKU: Kit 001 051oi
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: ABF, KR, PL, 9A, ACE, ADL, AAL.

### Dual Racing Valve Spring Kit VW 16v KR/AAL

- URL: https://stk.co.za/product/dual-valve-spring-kit-vw-16v-kr-aal/
- Price: R3150,00
- SKU: Kit 001 KR
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: KR, AAL, ABF, PL, 9A, ACE, ADL.

### Dual Racing Valve Spring Kit VW 8v

- URL: https://stk.co.za/product/dual-valve-spring-kit-vw-8v-2/
- Price: R2650,00
- SKU: KIT 001 SB078oi
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF,...

### Dual Racing Valve Spring Kit VW VR6 12v

- URL: https://stk.co.za/product/dual-valve-spring-kit-vw-vr6-12v/
- Price: R2965,00
- SKU: Kit 001 VR6
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk3 VR6, Corrado VR6, Passat VR6, Sharan. Engine codes: AAA, ABV, AFP.

### Forged Stainless Steel Valve Exhaust – BMW 24v (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-exhaust-bmw-24v-214-n/
- Price: R495,00
- SKU: SS21-4N-M50E
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine codes:...

### Forged Stainless Steel Valve Exhaust – EA888 (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-exhaust-ea888-214-n/
- Price: R365,00
- SKU: SS-214N 06E
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Forged Stainless Steel Valve Inlet – BMW 24v (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-inlet-bmw-24v-214-n/
- Price: R495,00
- SKU: SS21-4N-M50i
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine codes:...

### Forged Stainless Steel Valve Inlet – EA888 (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-inlet-ea888-214-n/
- Price: R365,00
- SKU: SS-214N 06D
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Forged Stainless Steel Valve Set – Audi 1.8T 20V (214-N)

- URL: https://stk.co.za/product/valve-set-forged-inlet-audi-1-8t-20v-engineset/
- Price: R5055,00
- SKU: ss21-4n-058ie
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY,...

### Forged Stainless Steel Valve Set – BMW 24v (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-set-bmw-24v-214-n/
- Price: R9995,00
- SKU: SS21-4N-M50iE
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine codes:...

### Forged Stainless Steel Valve Set – EA113 (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-set-ea113-214-n/
- Price: R5250,00
- SKU: SS21-4N-06iE
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk5 GTI / Edition 30, Audi A3 8P, Seat Leon Cupra, Skoda Octavia RS. Engine codes: AXX, BWA, BYD.

### Forged Stainless Steel Valve Set – EA888 (214-N)

- URL: https://stk.co.za/product/forged-stainless-steel-valve-set-ea888-214-n/
- Price: R5250,00
- SKU: SS21-4N-06iE2
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Lifter / Bucket Set Audi AAN 20v

- URL: https://stk.co.za/product/lifter-bucket-set-audi-aan-20v/
- Price: R3995,00
- SKU: STK3SAAN
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance cam followers/bucket shims for Audi AAN 20v engines. Fits Audi S2 Coupe / Avant, S4 C4, S6 C4, RS2 Avant (ADU), Audi 200 20V Turbo, Audi 90 / Coupe (7A). Engine codes: AAN, 3B, 7A, ABY, ADU, RR.

### Racing Dual Valve Spring Kit – Opel 8v

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-opel-8v/
- Price: R2630,00
- SKU: Kit 002 OPE8v
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits Kadett, Astra, Vectra, Kadett Superboss / Boss (20SEH). Engine codes: 20NE, C20NE, 20SE, 20SEH, C20SE.

### Racing Dual Valve Spring Kit + 6mm Chromoly Retainers + Locators + Valve Set BMW M50

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-6mm-chromoly-retainers-locators-valve-set-bmw-m50/
- Price: R22990,00
- SKU: Kit 006 RKM50
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8)....

### Racing Dual Valve Spring Kit + 6mm Chromoly Retainers + Locators + Valve Set BMW M52

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-6mm-chromoly-retainers-locators-valve-set-bmw-m52/
- Price: R22990,00
- SKU: Kit 006 RKM52
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8)....

### Racing Dual Valve Spring Kit + 6mm Chromoly Retainers + Locators + Valve Set BMW M54

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-6mm-chromoly-retainers-locators-valve-set-bmw-m54/
- Price: R22990,00
- SKU: Kit 006 RKM54
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8)....

### Racing Dual Valve Spring Kit + 6mm Chromoly Retainers + Locators + Valve Set BMW S52

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-6mm-chromoly-retainers-locators-valve-set-bmw-s52/
- Price: R22990,00
- SKU: Kit 006 RKS52
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8)....

### Racing Dual Valve Spring Kit + 6mm Chromoly Retainers Honda B + V-Tec

- URL: https://stk.co.za/product/racing-dual-valve-spring-kit-6mm-chromoly-retainers-honda-b-v-tec/
- Price: R5995,00
- SKU: Kit 008 RKHBV
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits Civic (EK / EG), CR-X, del Sol, Integra (incl. Type R), Ballade (South Africa), CR-V. Engine codes: B16A, B17A1, B18A1, B20B, B16A1, B18B1, B20Z2, B16A2, B18B3, B16A3, B18B4, B16A6,...

### Racing Dual Valve Spring Kit 6mm BMW M52

- URL: https://stk.co.za/product/racing-valve-spring-kit-bmw-m52/
- Price: R12995,00
- SKU: Kit 006 M52iS
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit for BMW M52 engines. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine...

### Racing Dual Valve Spring Kit 6mm BMW M54

- URL: https://stk.co.za/product/racing-valve-spring-kit-bmw-m54/
- Price: R12995,00
- SKU: Kit 006 M54iS
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit for BMW M54 engines. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine...

### Racing Dual Valve Spring Kit 7mm BMW M50

- URL: https://stk.co.za/product/racing-valve-spring-kit-bmw-m50/
- Price: R12995,00
- SKU: Kit 006 M50
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit for BMW M50/M52 engines. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine...

### Racing Dual Valve Spring Kit BMW S50/52/54

- URL: https://stk.co.za/product/racing-valve-spring-kit-6mm-bmw-s54-s50-s52/
- Price: R12995,00
- SKU: Kit 006 S54iL
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe...

### Racing Dual Valve Spring Set – Toyota 3T

- URL: https://stk.co.za/product/racing-dual-valve-spring-set-toyota-3t/
- Price: R2695,00
- SKU: Kit 007 3T
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon. Fits Corolla, Cressida. Engine codes: 3T.

### Racing Dual Valve Spring Set BMW 24v

- URL: https://stk.co.za/product/racing-dual-valve-spring-set-bmw-s50-52-54-copy/
- Price: R8995,00
- SKU: Kit 006 M50So
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe...

### Racing Valve Spring Inlet Audi 1.8T

- URL: https://stk.co.za/product/racing-valve-spring-inlet-audi-1-8t/
- Price: R2950,00
- SKU: Kit 001 058is
- Availability: In Stock
- Categories: Racing Valve Spring Kits

Uprated Valve Springs 12 x Inlet Dual Springs + 12 x Chromoly Retainers

### Racing Valve Spring Kit + Forged Valves Audi 1.8T 20v

- URL: https://stk.co.za/product/racing-valve-spring-kit-1-8t-20v/
- Price: R9995,00
- SKU: Kit 001 0581ie
- Availability: In Stock
- Categories: Forged Valves, Racing Valve Spring Kits, Racing Valve Springs + Forged Valve kits

Complete high-performance valve train upgrade kit for Audi 1.8T 20v engines. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH,...

### Racing Valve Spring Kit BMW M20

- URL: https://stk.co.za/product/racing-valve-spring-kit-7mm-bmw-m20/
- Price: R6250,00
- SKU: Kit 006 M20
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit for BMW M20 engines. Fits E21 3 Series, E28 5 Series, E30 3 Series (320i / 323i / 325e / 325i / 325is / 325iX), E34 520i / 525i, Z1. Engine codes: M20B20, M20B23, M20B25,...

### Racing Valve Spring kit Nissan SR20

- URL: https://stk.co.za/product/racing-valve-spring-kit-nissan-sr20/
- Price: R3995,00
- SKU: Kit 005 SR20
- Availability: In Stock
- Categories: Racing Valve Spring Kits

Racing Valve Spring kit Nissan SR20. Fits S13 / S14 / S15 Silvia, Primera GT, Almera GTi, 200SX, X-Trail GT (SR20VET). Engine codes: SR20Di, SR20DE, SR20DE GT, SR20DE VTC, SR20DE Autech, SR20DET, SR20VE, SR20VET.

### Racing Valve Spring Kit Single + Valve Set VW/Audi EA113

- URL: https://stk.co.za/product/racing-valve-spring-kit-single-valve-set-vw-audi-ea113/
- Price: R9995,00
- SKU: Kit 001 RK06ERiE2
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance single valve spring kit manufactured from premium Chrome Silicon. Fits Golf Mk5 GTI / Edition 30, Audi A3 8P, Seat Leon Cupra, Skoda Octavia RS. Engine codes: AXX, BWA, BYD.

### Racing Valve Spring Kit Single + Valve Set VW/Audi EA888

- URL: https://stk.co.za/product/racing-valve-spring-kit-single-valve-set-vw-audi-ea888/
- Price: R9995,00
- SKU: Kit 001 RK06ERiE
- Availability: In Stock
- Categories: Racing Valve Springs + Forged Valve kits

High-performance single valve spring kit manufactured from premium Chrome Silicon. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Racing Valve Spring Kit Single VW/Audi EA888

- URL: https://stk.co.za/product/racing-valve-spring-kit-single-vw-audi-ea888/
- Price: R4990,00
- SKU: Kit 001 06EA888
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Racing Valve Spring Kit VW 1.4TFSi

- URL: https://stk.co.za/product/racing-valve-spring-kit-vw-1-4tfsi/
- Price: R4990,00
- SKU: Kit 001 06ERCAV
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit for VW Polo 1.4 TFSi + TSI (CAV + CAX). Fits Golf Mk5 GT / Mk6, Scirocco, Jetta, Tiguan, Beetle, Eos, Polo GTI, Ibiza Cupra, Fabia RS, Audi A1. Engine codes: CAVA, CAVD, CAVE, CAVF,...

### Racing Valve Spring Kit VW Golf 5 GTi

- URL: https://stk.co.za/product/racing-valve-spring-kit-vw-golf-5-gti/
- Price: R4990,00
- SKU: Kit 001 06EREA113
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit for VW Golf 5 GTi (BWA / AAX). Fits Golf Mk5 GTI / Edition 30, Audi A3 8P, Seat Leon Cupra, Skoda Octavia RS. Engine codes: AXX, BWA, BYD.

### Racing Valve Spring Kit VW Golf 6 GTi

- URL: https://stk.co.za/product/racing-valve-spring-kit-vw-golf-6-gti/
- Price: R4990,00
- SKU: Kit 001 06EREA888
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit for VW Golf 6 GTi. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Racing Valve Spring Kit VW Golf 7 GTi

- URL: https://stk.co.za/product/racing-valve-spring-kit-vw-golf-7-gti/
- Price: R4990,00
- SKU: Kit 001 06ERG7
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit for VW Golf 7 GTi. Fits Golf Mk6 GTI / R, Golf Mk7 GTI / R, Golf Mk8 GTI, Audi A3 / S3. Engine codes: CCZA, CHHA, DNWA, CCZB, CHHB, CDL, CJXB, CDLG.

### Racing Valve Spring Kit VW Polo 16v

- URL: https://stk.co.za/product/racing-valve-spring-kit-vw-polo-16v/
- Price: R4990,00
- SKU: Kit 001 06ERCLP
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Polo Vivo, Polo 6R, Vento, Skoda Fabia, Seat Ibiza. Engine codes: CLP, CLS, CGGB, CLPA, CLSA, BXW, CLPB, CLSB, BUD, BBY, BKY, CFNA, CFNB, CFZA.

### Racing Valve Spring Set Ford Pinto

- URL: https://stk.co.za/product/racing-valve-spring-set-ford-pinto/
- Price: R2695,00
- SKU: Kit 004 Pinto
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance dual valve spring kit manufactured from premium Chrome Silicon steel. Fits Cortina Mk3 / Mk4, Capri, Sierra, Granada, Escort Mk2 / RS2000, Transit, Taunus. Engine codes: JA series, LAA, REB, NEA, LAD, REC, NEB, LAR, NAC, LCA, NAT, LCJ,...

### Retainer Chromoly Toyota 20v

- URL: https://stk.co.za/product/retainer-chromoly-toyota-20v/
- Price: R85,00
- SKU: STK 007 20v
- Availability: In Stock
- Categories: Valve Spring Retainers

High-performance valve spring retainers manufactured from 4130 Chromoly Steel. Fits AE101 / AE111 Corolla, Levin / Trueno. Engine codes: 4AGE 20v.

### Retainer Top Chromoly 16v Opel 7mm

- URL: https://stk.co.za/product/retainer-top-chromoly-opel-7mm/
- Price: R85,00
- SKU: STKD7SB
- Availability: In Stock
- Categories: Valve Spring Retainers

High-performance component engineered for motorsport applications. Fits Kadett / Astra GSi, Calibra, Vectra, Calibra Turbo (C20LET). Engine codes: 20XE, C20XE, C20LET, X20XEV, X20XER, C20SEL.

### Retainer Top Chromoly Audi 6mm

- URL: https://stk.co.za/product/retainer-top-chromoly-audi-6mm/
- Price: R85,00
- SKU: STK 001 058E
- Availability: In Stock
- Categories: Valve Spring Retainers

High-performance component engineered for motorsport applications. Fits by stem diameter / dimension rather than a specific engine.

### Retainer Top Chromoly BMW 6mm

- URL: https://stk.co.za/product/retainer-top-chromoly-bmw-6mm/
- Price: R85,00
- SKU: STKD6SB
- Availability: In Stock
- Categories: Valve Spring Retainers

High-performance component engineered for motorsport applications. Fits E34 5 Series, E36 3 Series (sedan / coupe / convertible), E36 Compact 323ti, E38 7 Series, E39 5 Series, E46 3 Series, Z3 Roadster (E36/7), Z3 Coupe (E36/8). Engine codes: M50B20, M52B20,...

### Retainer Top Chromoly VW 7mm

- URL: https://stk.co.za/product/retainer-top-chromoly-vw-7mm/
- Price: R85,00
- SKU: STKD7S
- Availability: In Stock
- Categories: Valve Spring Retainers

High-performance component engineered for motorsport applications. Fits by stem diameter / dimension rather than a specific engine.

### Single Racing Valve Spring Kit Audi 2.5TFSI

- URL: https://stk.co.za/product/single-valve-spring-kit-audi-2-5tfsi/
- Price: R6250,00
- SKU: Kit 06ER25
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Audi RS3 8P / 8V / 8Y, Audi TT RS 8J / 8S, Audi RS Q3. Engine codes: DAZA, CEPA, CEPB, DXHA.

### Single Racing Valve Spring Kit Audi RS3

- URL: https://stk.co.za/product/single-valve-spring-kit-audi-rs3/
- Price: R6250,00
- SKU: Kit 001 06ERS3
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Audi RS3 8P / 8V / 8Y, Audi TT RS 8J / 8S, Audi RS Q3. Engine codes: DAZA, CEPA, CEPB, DXHA.

### Single Racing Valve Spring Kit Audi TTRS

- URL: https://stk.co.za/product/single-valve-spring-kit-audi-ttrs/
- Price: R6250,00
- SKU: Kit 06ERTTRS
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Audi RS3 8P / 8V / 8Y, Audi TT RS 8J / 8S, Audi RS Q3. Engine codes: DAZA, CEPA, CEPB, DXHA.

### Single Racing Valve Spring Kit Audi V6 FSi

- URL: https://stk.co.za/product/single-valve-spring-kit-audi-v6-fsi/
- Price: R7500,00
- SKU: Kit 001 06ERV6
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Audi A4 B7 / B8, A5, A6 C6 / C7, A8 D3, Q5, Q7, S4 B8, S5. Engine codes: BDW, CCDA, AUK, CMUA, CAJA, CCEA, BKH, CREC, CCBA,...

### Single Racing Valve Spring Kit BMW M57 3.0D

- URL: https://stk.co.za/product/single-racing-valve-spring-kit-bmw-3-0d-m57/
- Price: R7950,00
- SKU: Kit 006 M57D
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit for BMW M57 3.0D diesel engines. Fits E39 525d / 530d, E46 330d, E38 730d, E53 X5 3.0d, E60 / E61 525d / 530d / 535d, E65 730d, E90 325d / 330d / 335d, E70...

### Single Racing Valve Spring Kit Ford ST150/170

- URL: https://stk.co.za/product/single-valve-spring-kit-ford-st150-170/
- Price: R4750,00
- SKU: Kit 004 06ERSST
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Focus ST170, Focus ST150, Mazda 3 MPS, Mazda 6 MPS, CX-7, Mazdaspeed Axela / Atenza. Engine codes: Zetec-R, Duratec HE, L3-VDT, L3K9, L3-VET.

### Single Racing Valve Spring Kit Mazda MPs

- URL: https://stk.co.za/product/single-valve-spring-kit-mazda-mps/
- Price: R4990,00
- SKU: Kit 004 06ERS
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Focus ST170, Focus ST150, Mazda 3 MPS, Mazda 6 MPS, CX-7, Mazdaspeed Axela / Atenza. Engine codes: Zetec-R, Duratec HE, L3-VDT, L3K9, L3-VET.

### Single Racing Valve Spring Kit VAG EA113

- URL: https://stk.co.za/product/single-valve-spring-kit-vag-ea113/
- Price: R4990,00
- SKU: Kit 001 06ER
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk5 GTI / Edition 30, Audi A3 8P, Seat Leon Cupra, Skoda Octavia RS. Engine codes: AXX, BWA, BYD.

### Single Racing Valve Spring Kit VW R32

- URL: https://stk.co.za/product/single-valve-spring-kit-vw-r32/
- Price: R7500,00
- SKU: Kit 001 06ER32
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon steel. Fits Golf Mk4 R32, Golf Mk5 R32, Audi TT 3.2, Audi A3 3.2, New Beetle RSi. Engine codes: BFH, BJS, BUB, BHE, BMJ, BDB, CBRA, AXJ.

### Solid Lifter 35mm x 30mm x 3mm

- URL: https://stk.co.za/product/solid-lifter-35mm-x-30mm-x-3mm/
- Price: R295,00
- SKU: STK3SBH1
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance cam followers/bucket shims. Fits by stem diameter / dimension rather than a specific engine.

### Solid Lifter Set VW 16v

- URL: https://stk.co.za/product/solid-lifter-set-vw-16v/
- Price: R3200,00
- SKU: STK3SHB
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance cam followers/bucket shims. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: ABF, KR, PL, 9A, ACE, ADL, AAL.

### Solid Lifter Set VW 8v

- URL: https://stk.co.za/product/solid-lifter-set-vw-8v/
- Price: R1600,00
- SKU: STK3SBH
- Availability: In Stock
- Categories: Lifters + Cam Buckets

High-performance cam followers/bucket shims. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Toyota Racing Single Valve Spring Kit 4AGE 20v + Retainers

- URL: https://stk.co.za/product/racing-single-valve-spring-kit-4age-20v-retainers/
- Price: R3995,00
- SKU: Kit 003 4AGE20v
- Availability: In Stock
- Categories: Racing Valve Spring Kits

High-performance single valve spring kit manufactured from premium Chrome Silicon. Fits AE101 / AE111 Corolla, Levin / Trueno. Engine codes: 4AGE 20v.

### Valve Forged Exhaust Audi 1.8T 20v

- URL: https://stk.co.za/product/valve-forged-exhaust-audi-1-8t-20v/
- Price: R295,00
- SKU: SS-214N-058ESL
- Availability: In Stock
- Categories: Forged Valves

High-performance forged exhaust valve for Audi 1.8T 20v engines. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL,...

### Valve Forged Inlet Audi 1.8T 20v

- URL: https://stk.co.za/product/valve-set-forged-inlet-audi-1-8t/
- Price: R265,00
- SKU: ss-058i
- Availability: In Stock
- Categories: Forged Valves

High-performance forged inlet valve for Audi 1.8T 20v engines. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL,...

### Valve Forged SS VW 8v Exhaust

- URL: https://stk.co.za/product/valve-forged-ss-vw-8v-exhaust/
- Price: R225,00
- SKU: SS-214N-078E
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Valve Forged SS VW 8v Inlet

- URL: https://stk.co.za/product/valve-forged-ss-vw-8v-inlet/
- Price: R225,00
- SKU: SS-214N-078i
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Valve Set Forged Audi 1.8T 20v Exhaust

- URL: https://stk.co.za/product/valve-set-forged-audi-1-8t-20v/
- Price: R2360,00
- SKU: ss21-4n-058E
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY,...

### Valve Set Forged Inlet Audi 1.8T 20v

- URL: https://stk.co.za/product/valve-set-forged-inlet-audi-1-8t-20v/
- Price: R2695,00
- SKU: ss21-4n-058i
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY,...

### Valve Set Forged SS VW 8v

- URL: https://stk.co.za/product/valve-set-forged-ss-vw-8v/
- Price: R1795,00
- SKU: ss21-4n-078ie
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk1 / Mk2 / Mk3, Jetta, Passat, Caddy, Polo, Corrado, Audi 80 / 90. Engine codes: EG, DX, 2E, EW, EV, AGG, EZ, PB, ADY, PN, PF, AAD, RF, GX.

### Valve Set Forged VW ABF 214-N

- URL: https://stk.co.za/product/valve-set-forged-vw-abf-214-n/
- Price: R3600,00
- SKU: ss21-4n-051ie
- Availability: In Stock
- Categories: Forged Valves

High-performance forged valve manufactured from 21-4N Stainless Steel. Fits Golf Mk2 16V, Golf Mk3 ABF, Corrado 16V, Passat 16V, Audi 80 16V. Engine codes: ABF.

### VW 1,8T 20v Camshaft Set 252/262HT

- URL: https://stk.co.za/product/vw-18t-20v-camshaft-set-252-262ht/
- Price: R7950,00
- SKU: SET 001 058 262/252HT
- Availability: In Stock
- Categories: Camshaft Set Audi 1,8T 20v

High-performance hydraulic lifter camshaft. Fits Golf Mk4 GTI, Audi A3 8L, Audi A4 B5 / B6, Audi TT 8N, Seat Leon, Skoda Octavia, Passat B5. Engine codes: ADR, AEB, APT, AGU, ARG, AJH, AGN, AJL, AFY, AJQ, AVC, AMB, ARH,...


## Articles

### [Why Your New Performance Camshaft Delivers Even Better Results with the Right Supporting Components](https://stk.co.za/why-your-new-performance-camshaft-delivers-even-better-results-with-the-right-supporting-components/)
Published: 2026-06-04

A performance camshaft is one of the most effective upgrades you can make to an engine. Whether you're building a responsive street car, a powerful weekend toy, or a dedicated...

### [Choosing the Right Camshaft for Your Engine: The Complete Performance Guide](https://stk.co.za/choosing-the-right-camshaft-for-your-engine-the-complete-performance-guide/)
Published: 2026-05-22

When building a performance engine, the camshaft is one of the most important components in the entire setup. It determines how your engine breathes, where it makes power, how aggressive...

### [Built to Unlock Real Turbo Performance - STK Opel Corsa 270/264HT Turbo Camshaft](https://stk.co.za/built-to-unlock-real-turbo-performance-stk-opel-corsa-270-264ht-turbo-camshaft/)
Published: 2026-05-18

When building a turbo Opel Corsa 8-valve engine, one of the biggest restrictions in the setup is often the factory camshaft. While the standard cam profile is designed for smooth...

### [High-Performance Valvetrain Upgrades for Ford ST Engines](https://stk.co.za/high-performance-valvetrain-upgrades-for-ford-st-engines/)
Published: 2026-04-20

When building or upgrading a high-performance Ford Duratec engine, one of the most critical yet often overlooked components is the valvetrain—specifically, the valve springs. The STK Single Valve Spring Kit...

### [The Small Upgrade That Solves Big Problems: Mazda MPS Single Valve Spring Kit](https://stk.co.za/the-small-upgrade-that-solves-big-problems-mazda-mps-single-valve-spring-kit/)
Published: 2026-04-16

When building or upgrading a performance engine—especially something like a Mazda MPS—most people focus on the obvious: bigger turbos, aggressive tuning, and upgraded fueling. But one of the most critical...

### [Racing Valve Spring Kit Nissan SR20 – The Upgrade Your Build Actually Needs](https://stk.co.za/racing-valve-spring-kit-nissan-sr20-the-upgrade-your-build-actually-needs/)
Published: 2026-04-13

When it comes to pushing the legendary Nissan SR20 engine beyond factory limits, most builders focus on turbos, fuel systems, and tuning. But one of the most overlooked — and...

### [The Small Engine Part That Solves Big VW 16V Problems](https://stk.co.za/the-small-engine-part-that-solves-big-vw-16v-problems/)
Published: 2026-04-09

When it comes to performance and reliability, most enthusiasts focus on big upgrades—cams, turbos, injectors. But often, the real problem lies in the smallest components. In the case of VW...

### [The Unseen Weak Points in BMW Performance Builds — And the Upgrades That Fix Them](https://stk.co.za/the-unseen-weak-points-in-bmw-performance-builds-and-the-upgrades-that-fix-them/)
Published: 2026-04-07

BMW engines are known for their balance of performance, refinement, and engineering excellence. Platforms like the M20, M30, M50, M52, and M54 have become favourites among enthusiasts for builds ranging...

### [The Hidden Killer in Ford Pinto Engines — And How to Fix It](https://stk.co.za/the-hidden-killer-in-ford-pinto-engines-and-how-to-fix-it/)
Published: 2026-03-24

When it comes to classic builds and performance upgrades, the Ford Pinto engine has earned its place as a reliable and tunable platform. But there’s one common issue that continues...

### [The Hidden Problem in VW 8V Performance Engines – And How Dual Valve Springs Solve It](https://stk.co.za/the-hidden-problem-in-vw-8v-performance-engines-and-how-dual-valve-springs-solve-it/)
Published: 2026-03-16

When building or upgrading a VW 8-valve engine, most people focus on the obvious performance upgrades: camshafts, ported cylinder heads, turbo systems, or ECU tuning. But there is a critical...

### [Lockdown Project to Drift Machine: Ruan Oosthuizen’s Turbo BMW E46 Journey](https://stk.co.za/lockdown-project-to-drift-machine-ruan-oosthuizens-turbo-bmw-e46-journey/)
Published: 2026-03-11

At 32 years old, Ruan Oosthuizen is steadily making his mark in the drifting scene with his BMW E46 M52B28 Turbo, a car built with passion, persistence, and a love...

### [Solving the Power Problem in Opel Corsa 8-Valve Engines: The STK 270H Camshaft with Vernier Pulley](https://stk.co.za/solving-the-power-problem-in-opel-corsa-8-valve-engines-the-stk-270h-camshaft-with-vernier-pulley/)
Published: 2026-03-10

For many Opel Corsa enthusiasts, the engine is reliable, affordable to maintain, and fun to drive. However, once the excitement of a stock motor wears off, many owners begin to...

### [Raynard Schoeman – Rising Through the Ranks in 1660 TinTops](https://stk.co.za/raynard-schoeman-rising-through-the-ranks-in-1660-tintops/)
Published: 2026-03-09

In the competitive world of 1660 TinTops oval racing, every component inside the engine plays a critical role in reliability and performance. For Raynard Schoeman’s #57 TinTops race car, one...

### [From Stock Rod Beginnings to a High-Revving A15: Dillon Kruger’s STK-Powered Racing Journey](https://stk.co.za/from-stock-rod-beginnings-to-a-high-revving-a15-dillon-krugers-stk-powered-racing-journey/)
Published: 2026-03-06

Grassroots motorsport is built on passion, persistence, and the drive to push machinery to its limits. For Dillon Kruger, racing has been a journey that spans more than a decade,...

### [In-Depth Look at the Racing Dual Valve Spring Set for Toyota 3T Engines](https://stk.co.za/in-depth-look-at-the-racing-dual-valve-spring-set-for-toyota-3t-engines/)
Published: 2026-03-02

When building a high-revving street engine or a dedicated race setup, valvetrain stability becomes critical. The Racing Dual Valve Spring Set for Toyota 3T engines is designed specifically to handle...

### [Where OEM Stops, Performance Begins](https://stk.co.za/where-oem-stops-performance-begins/)
Published: 2026-02-23

STK Racing Dual Valve Spring Kit + 6mm Chromoly Retainers Honda B-Series & VTECWhen building a high-revving Honda B-Series or VTEC engine, the valvetrain becomes one of the most critical components...

### [Dual Valve Spring & Valve Kit – VW ABF](https://stk.co.za/dual-valve-spring-valve-kit-vw-abf/)
Published: 2026-02-16

Upgrade Your 2.0 16V the Right Way   If you’re building or refreshing a VW ABF 2.0 16V motor, the valvetrain is not the place to cut corners. Whether you're...

### [Unleash the Full Potential of Your 1.8T 20V with a Proper Valvetrain Upgrade](https://stk.co.za/unleash-the-full-potential-of-your-1-8t-20v-with-a-proper-valvetrain-upgrade/)
Published: 2026-02-09

When building a serious Volkswagen or Audi 1.8T 20V engine, most enthusiasts focus on turbo size, injectors, intercoolers, and tuning. But one of the most critical components in any high-performance...

### [STK Performance Dual Racing Valve Spring Kit VW 8v – Ultimate Valvetrain Upgrade](https://stk.co.za/stk-performance-dual-racing-valve-spring-kit-vw-8v-ultimate-valvetrain-upgrade/)
Published: 2026-02-02

When building a performance-focused Volkswagen 8-valve engine, your valvetrain setup can make or break the build. Whether you're chasing higher RPM, running an aggressive cam, or building a boosted setup,...

### [Unlock More RPM and Reliability: Racing Valve Spring Kit vs Stock Valve Springs on the BMW M20](https://stk.co.za/unlock-more-rpm-and-reliability-racing-valve-spring-kit-vs-stock-valve-springs-on-the-bmw-m20/)
Published: 2026-01-26

When building a BMW M20 engine — whether for spirited street driving, high-revving track use, or a full race application — the valvetrain is one of the most critical areas...

### [OEM vs STK Racing Single Valve Spring Kit – Toyota 4AGE 20V](https://stk.co.za/oem-vs-stk-racing-single-valve-spring-kit-toyota-4age-20v/)
Published: 2026-01-19

When modifying or rebuilding a Toyota 4A-GE 20V engine, most enthusiasts focus on cams, intake systems, and engine management. One component that often gets overlooked is the valve spring. Yet...

### [OEM vs STK Dual Racing Valve Spring Kit – Nissan A14/A15](https://stk.co.za/oem-vs-stk-dual-racing-valve-spring-kit-nissan-a14-a15/)
Published: 2026-01-12

Introduction Valve springs are one of the most critical components in any engine, directly affecting airflow, RPM capability, and long-term reliability. On Nissan’s classic A-series engines — the A14 and...

### [STK Racing Dual Valve Springs for BMW M52 — Built for High RPM and Boosted Pressure](https://stk.co.za/stk-racing-dual-valve-springs-for-bmw-m52-built-for-high-rpm-and-boosted-pressure/)
Published: 2026-01-06

BMW M52 owners modify their engines for one reason: the platform rewards it. Whether the goal is sharper throttle response, more power at redline, or a reliable boosted setup, the...

### [Turbo Camshaft Upgrades – Why They Work](https://stk.co.za/turbo-camshaft-upgrades-why-they-work/)
Published: 2025-09-08

For years, a common misconception has circulated in the tuning world: “Camshafts don’t make a difference on turbocharged engines.” At STK Performance, we’ve proven that statement wrong. With the release of our 252/262H...

### [STK Performance VW 8v Hydraulic & Solid Lifter Camshaft Kits](https://stk.co.za/stk-performance-vw-8v-hydraulic-solid-lifter-camshaft-kits/)
Published: 2025-09-08

Bring your classic VW 8-valve to life with a valvetrain package engineered as a system. STK Performance offers VW 8v camshaft kits in both hydraulic and solid lifter configurations—paired with forged performance valves, racing valve spring...

### [STK Performance Dual Valve Springs for Ford Kent Engines](https://stk.co.za/stk-performance-dual-valve-springs-for-ford-kent-engines/)
Published: 2025-08-26

The Ford Kent engine—a legendary powerplant found in everything from classic Escorts and Capris to Formula Ford race cars—has earned a reputation for being robust, tuneable, and high-revving. For enthusiasts...

### [STK Performance Nissan A14/A15 Dual Valve Springs – Materials, Benefits, and Performance Insights](https://stk.co.za/stk-performance-nissan-a14-a15-dual-valve-springs-materials-benefits-and-performance-insights/)
Published: 2025-08-26

When pushing the limits of classic Nissan A-series engines such as the A14 and A15, the right valve train components become essential. Whether it’s for motorsport, spirited street use, or...

### [STK Performance Dual Valve Spring Upgrade for Mazda FE3 16V – Materials, Benefits & Performance Gains](https://stk.co.za/stk-performance-dual-valve-spring-upgrade-for-mazda-fe3-16v-materials-benefits-performance-gains/)
Published: 2025-08-26

The Mazda FE3 16-valve engine is a solid platform for naturally aspirated or turbocharged performance builds. Known for its strong bottom end and high-flow cylinder head, the FE3 responds incredibly...

### [STK Performance Upgrades for the VW ABF 2.0 16V – Valve Springs & Performance Valves](https://stk.co.za/stk-performance-upgrades-for-the-vw-abf-2-0-16v-valve-springs-performance-valves/)
Published: 2025-08-26

The legendary Volkswagen ABF 2.0L 16V engine is renowned for its high-revving nature and motorsport pedigree. Whether you’re building a naturally aspirated screamer or a turbocharged street monster, upgrading the...

### [STK Performance Valve Springs for VAG TFSI & R32 Engines: Engineering for Power and Reliability](https://stk.co.za/stk-performance-valve-springs-for-vag-tfsi-r32-engines-engineering-for-power-and-reliability/)
Published: 2025-08-26

When building high-performance VAG engines, one critical yet often overlooked component is the valve spring. STK Performance has developed a range of uprated valve spring kits tailored for the demands...

### [STK Performance Valve Springs for Audi TFSI Engines](https://stk.co.za/stk-performance-valve-springs-for-audi-tfsi-engines/)
Published: 2025-08-26

Covering 2.5 TFSI (TTRS, RS3) & 4-Cylinder 16V TFSI Applications When pushing the performance boundaries of modern Audi TFSI engines, valve train stability becomes critical. STK Performance offers a range...

### [STK Performance BMW M50, M52, M54 Dual Valve Spring Kits & Forged Stainless Steel Valves](https://stk.co.za/stk-performance-bmw-m50-m52-m54-dual-valve-spring-kits-forged-stainless-steel-valves-2/)
Published: 2025-08-26

For BMW performance enthusiasts and engine builders, the M50, M52, and M54 inline-6 engines have become iconic platforms for both naturally aspirated and forced induction applications. At STK Performance, we...

### [High-Performance Valve Spring Kits for Toyota 3SGTE – Engineered by STK Performance](https://stk.co.za/high-performance-valve-spring-kits-for-toyota-3sgte-engineered-by-stk-performance/)
Published: 2025-08-26

The Toyota 3SGTE engine, known for its strength and tuning potential, is a favourite among motorsport and performance enthusiasts. Whether you're building a high-boost street car or a dedicated track...

### [STK Performance Valve Spring Kits for Ford ST150 – Materials, Benefits, and Why Choose STK](https://stk.co.za/stk-performance-valve-spring-kits-for-ford-st150-materials-benefits-and-why-choose-stk/)
Published: 2025-08-26

The Ford ST150, known for its rev-happy Duratec 2.0 engine, has become a popular platform for tuning and motorsport applications. Whether naturally aspirated or boosted, increased performance demands more from...

### [High-Performance Valve Springs for Audi RS3 & TTRS: STK Performance Advantage](https://stk.co.za/high-performance-valve-springs-for-audi-rs3-ttrs-stk-performance-advantage-2/)
Published: 2025-08-26

When it comes to extracting the maximum performance from Audi’s legendary 2.5 TFSI engines found in the RS3 and TTRS, upgrading the valvetrain components is crucial—especially when increasing boost, raising...

### [STK Performance Valve Springs for VW VR6 AAA 12v Engine](https://stk.co.za/stk-performance-valve-springs-for-vw-vr6-aaa-12v-engine/)
Published: 2025-08-12

Optimized Valvetrain Performance for Naturally Aspirated and Forced Induction Builds The Volkswagen VR6 AAA 12v engine is a beloved powerplant, known for its unique narrow-angle V6 layout and robust bottom...

### [STK Performance Valve Spring Kits for VW Polo CLS & CLP Engines](https://stk.co.za/stk-performance-valve-spring-kits-for-vw-polo-cls-clp-engines/)
Published: 2025-08-12

Precision Engineering for Ultimate Reliability and Performance When it comes to enhancing the performance and reliability of your VW Polo CLS or CLP engine, upgrading the valve train is one...

### [STK Performance Camshafts & Valve Train Components for VW 8V Engines](https://stk.co.za/stk-performance-camshafts-valve-train-components-for-vw-8v-engines/)
Published: 2025-08-12

Materials • Engineering • Benefits • Why Choose STK? When it comes to maximizing the performance of your VW 8V engine—whether in motorsport, fast-road, or high-performance builds—STK Performance provides an...

### [STK Performance Valve Springs: A Guide to Material Specs, Uses, and Applications](https://stk.co.za/stk-performance-valve-springs-a-guide-to-material-specs-uses-and-applications/)
Published: 2025-08-12

When building or upgrading a high-performance engine, every component matters — and valve springs are no exception. STK Performance Valve Springs are engineered to withstand the rigorous demands of motorsports...

### [STK Performance Opel Valve Spring Kits – Materials, Benefits, and Why Choose STK](https://stk.co.za/stk-performance-opel-valve-spring-kits-materials-benefits-and-why-choose-stk/)
Published: 2025-08-12

Overview STK Performance Opel Valve Spring Kits are precision-engineered components designed to optimize valvetrain control in high-revving, performance-modified Opel engines. Whether you’re upgrading for track use, forced induction, or simply...

### [STK Performance Cam followers, Lifters, and Cam Buckets](https://stk.co.za/stk-performance-cam-followers-lifters-and-cam-buckets/)
Published: 2025-08-12

STK Performance is a name synonymous with durability, precision, and innovation in the world of high-performance valvetrain components. Among their most critical offerings are cam followers, lifters, and cam buckets,...

### [STK Performance Camshafts: Materials, Types, and Engineering Excellence](https://stk.co.za/stk-performance-camshafts-materials-types-and-engineering-excellence/)
Published: 2025-08-12

STK Performance camshafts are engineered for high-performance engines where precision, durability, and optimized valve timing are critical. Built using advanced metallurgy and precise manufacturing techniques, these camshafts are the backbone...

### [Unlocking Performance: STK Performance Camshaft & Valvetrain Upgrades for the Audi 1.8T 20V](https://stk.co.za/unlocking-performance-stk-performance-camshaft-valvetrain-upgrades-for-the-audi-1-8t-20v/)
Published: 2025-08-12

For Audi enthusiasts and tuners, the 1.8T 20-valve engine has long been a staple of performance builds. Whether you're building a responsive street car or a full-blown track weapon, unlocking...

### [Forged STK Performance Valves: Materials, Applications, and Benefits](https://stk.co.za/forged-stk-performance-valves-materials-applications-and-benefits/)
Published: 2025-08-12

When it comes to high-performance internal combustion engines, every component plays a vital role in delivering optimal power, durability, and efficiency. Among the most critical of these components are engine...

### [STK Performance BMW M50, M52, M54 Dual Valve Spring Kits & Forged Stainless Steel Valves](https://stk.co.za/stk-performance-bmw-m50-m52-m54-dual-valve-spring-kits-forged-stainless-steel-valves/)
Published: 2025-07-22

For BMW performance enthusiasts and engine builders, the M50, M52, and M54 inline-6 engines have become iconic platforms for both naturally aspirated and forced induction applications. At STK Performance, we...

### [High-Performance Valve Springs for Audi RS3 & TTRS: STK Performance Advantage](https://stk.co.za/high-performance-valve-springs-for-audi-rs3-ttrs-stk-performance-advantage/)
Published: 2025-07-22

When it comes to extracting the maximum performance from Audi’s legendary 2.5 TFSI engines found in the RS3 and TTRS, upgrading the valvetrain components is crucial—especially when increasing boost, raising...

### [STK Camshaft Warranty](https://stk.co.za/stk-camshaft-warranty/)
Published: 2025-04-29

STK Performance warrants that all Performance Camshafts are free from defects in material , workmanship and against excessive wear for a period of 12 months from the date of purchase....

### [Break-in Process](https://stk.co.za/break-in-process/)
Published: 2025-04-29

STK Performance Valve Train Products (VTP's) are manufactured from the finest Quality Materials available and have been Developed & Tested under severe Motorsport conditions. To ensure that your STK Performance...

### [STK Performance Valve Springs](https://stk.co.za/stk-performance-valve-springs/)
Published: 2025-04-28

Dual Valve Spring sets consist of an innerspring and an outer spring per valve. These springs are rated at 200 pounds pressure compared to a standard production spring of around...

### [Chilled Cast Performance Camshafts](https://stk.co.za/chilled-cast-performance-camshafts/)
Published: 2025-04-24

Performance camshafts are referred to as billets in the trade, but this is incorrect in this case. A Billet is machined from a round bar of iron, in our case...