Enhances performance for both stock and modified N54 setups

5L Single VANOS

sleeving the block will be necessary

See photos for details

BMW S38 Valve Springs by SuperTech z4 28i Enhances performance for both stockSupertech delivers this high performance valve spring kit, specifically engineered for the BMW S38B35 and S38B36 engines, offering superior valve control and long lasting reliability. Each kit includes a complete set of precision crafted valve springs and all necessary installation components, ensuring a seamless fit and optimal performance. Designed for the rigors of high performance applications, Supertech valve springs are favored by performance