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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 valves, particularly in race and high-performance applications. STK Performance has established itself as a reputable brand in the performance aftermarket, offering forged valves engineered to […]

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 understand the importance of reliable valvetrain performance, especially in high-revving or turbocharged setups. That’s why we offer precision-engineered dual valve spring kits and forged stainless

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 RPM limits, or upgrading camshaft profiles. One of the most critical elements in a high-performance valvetrain setup is the valve springs. This is where STK

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. This Limited Warranty shall apply for a period of 12 months from the date of purchase and shall cover only the original purchaser. This Warranty

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 VTP performs to its optimum ensure that the following “Break-In” Procedures are strictly adhered to: STK Camshafts & STK Heavy Duty Camfollowers ( VW )

REV Kits We receive calls daily regarding requests for Rev Kits… unfortunately, the understanding of a Rev Kit is completely misunderstood and we’d like to point you in the right direction should you be considering upgrading your ride… What is a Rev Kit… The biggest misconception is that by fitting a Rev Kit and removing