# STK Performance
> High-Performance Cylinder Head Components — Racing Camshafts, Valve Spring Kits, Forged Valves, Retainers & Lifters

## About
STK Performance specializes in premium cylinder head components for performance-driven builds. Founded in 2003 by Simon Johnstone with over 34 years of hands-on experience in VW Motorsport, Audi Sport SA, and precision engine development. Offices in South Africa, the United Kingdom, and Mexico City. STK is the camshaft of choice for Copi Notiauto Mexico racing program in the Super Turismos Light Mexican Series.

## Products (133 total)
- Racing Valve Spring Kits (47 products) — single and dual spring kits for VW, Audi, BMW, Toyota, Nissan, Opel, Honda
- Forged Valves (28 products) — 21-4N stainless steel intake and exhaust valves
- Camshaft Kits (16 products) — complete kits with camshaft, springs, retainers, and valves
- Camshafts VW 8v (13 products) — hydraulic and solid lifter profiles from 268H to 296H
- Racing Valve Springs + Forged Valve Kits (9 products) — combined spring and valve packages
- Lifters + Cam Buckets (8 products) — hydraulic camfollowers for VW, Audi, BMW
- Valve Spring Retainers (7 products) — 6mm and 7mm chromoly retainers
- Camshafts Opel 8v (4 products) — performance profiles for Opel engines
- Camshaft Set Audi 1.8T 20v (3 products) — intake and exhaust cam sets

## Vehicle Coverage
VW (8v, 16v, 20v, ABF, VR6), Audi (1.8T 20v, 1.8 NA 20v), BMW (M20, M50, M52), Opel 8v, Toyota (4AGE 20v, 3SGTE, 3T), Nissan (A14/A15), Mazda/Ford, Honda (B-Series, VTEC)

## Technical Resources
STK publishes technical articles covering valve failure analysis, valve spring failure analysis, camshaft upgrade guides, and OEM vs performance comparisons for specific engine platforms.

## Contact
- Phone: +27 65 597 8744
- Email: sales@stk.co.za
- WhatsApp: +27 65 597 8744
- Facebook: https://www.facebook.com/stkperformance
- Instagram: https://www.instagram.com/stk_performance

## Links
- Shop: https://stk.ormsy.co.za/shop/
- Tech & Media: https://stk.ormsy.co.za/tech-media/
- About: https://stk.ormsy.co.za/about/
- Contact: https://stk.ormsy.co.za/contact-us/