Tired of dealing with shim-related issues in your BMW S54 engine? Supertech has the perfect solution with this high-performance valvetrain kit, designed to eliminate the common risks of OEM valve shim failure, valve float, and coil bind. This upgrade allows you to confidently push your BMW S54 to an incredible 9600 RPM, transforming the performance of your E46 M3 or Z4M. The Supertech valvetrain kit includes high-quality engine valves and valve springs, engineered to withstand the demands of high-performance driving. The upgraded components are designed for precise fitment in BMW S54 engines, providing enhanced reliability and durability under extreme conditions. This kit is ideal for enthusiasts who want to achieve maximum power output without compromising engine stability. Extensively tested on a range of setups in both our drivers' and customers' cars, the Supertech valvetrain kit has consistently proven its ability to reach 9600 RPM. To reach these high RPM levels safely, proper engine tuning is essential to ensure optimal performance. Key Benefits: Eliminates Common S54 Issues: No more OEM valve shim failure, valve float, or coil bind. Push RPM Limits: Safely increase your RPM to 9600 for maximum performance. Precision Fit for BMW S54 Engines: Ideal for E46 M3 and Z4M models. High-Quality Supertech Components: Includes performance valves and valve springs designed for durability and stability. Track and Street Performance: Perfect for high-performance street driving and track use. Upgrade your BMW S54 engine with the Supertech valvetrain kit for improved performance, higher RPM capabilities, and ultimate reliability. Kit Contents: (12) Single groove Intake Valves (12) Single groove Inconel Exhaust Valves (24) Valve Spring Seats (24) Dual springs (24) Titanium retainers (24) Lash caps** (48) Valve lock/keepers **Kit includes 4mm lash caps. Engine builder must adjust the valve lash accordingly. Standard Size is 35mm Intake / 30.5mm Exhaust Option 36mm Intake/31.5mm Exhaust requires a VANOS Elimination Kit To ensure optimal performance and safety, make sure to pair our hardware with the appropriate tuning package. By doing so, you can effortlessly reach your desired RPM goals without encountering any issues. Check out below videos of some awesome S54 setups! Michal Reichert's E92 M3 powered with a turbo S54 1100+HP Michael Essa's E46 M3 powered with an S54 Turbo 1200WHP. Dany's Naturally Aspirated S54 Hill Climb Build BMW S54 Applications: BMW 3 Series 2000-2006 E46 M3 BMW Z3 Series 2001-2002 Z3 M BMW Z4 Series 2006-2008 Z4 M
