40mm Exhaust   Sport  272° Intake / 258° Exhaust   11

Time Attack

making precise valvetrain control essential for avoiding lifter noise

with the automatic transmission model featuring an auxiliary inlet port for the stock automatic transmission cooler connection

S14 Cylinder Head Service by 5150 AutoSport Service:Pro-Xtreme 40mm Exhaust Sport 272° Intake5150 AutoSport Performance Cylinder Head Services for BMW S14 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