making live adjustments and refining your tune based on real-world data

The included ARP 2000 rod bolts add further reliability

These retainers perfectly complement the valve springs

minimizing the risk of failure

Supports up to 1000 HP for turbocharged and supercharged builds

S50B30 S50B32 Cylinder Head Service by 5150 AutoSport 7218 making live adjustments and refining5150 AutoSport Performance Cylinder Head Services for BMW S50 EURO 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