Why Choose 5150 AutoSport

providing an efficient and cost-effective way to add flex fuel capability to your S58-powered vehicle without permanent modifications

Best suited for engines operating primarily at higher RPM

The SuperTech High-Performance Valve Kit for BMW

Optimized for Boosted M52 Builds – 9:1 compression provides the ideal balance between power

B46 Cylinder Head Service by 5150 AutoSport M62 Head Gasket Why Choose 5150 AutoSport5150 AutoSport Performance Cylinder Head Services for BMW B46 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. Investing in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race level machining: Stage 1 OEM Refresh (Rebuild