N53 Cylinder Head Service by 5150 AutoSport Service:Pro-Xtreme NOTE: Because the top of

NOTE: Because the top of the fuel fill tube should not be higher than the location of this air filter

(9) Large DEKA Heavy Duty Patented Friction Discs

Stock BMW N20 valve springs are insufficient for high-lift cams and high RPMs

Billet-machined LSD case ensures structural integrity and precise fitment

N53 Cylinder Head Service by 5150 AutoSport Service:Pro-Xtreme NOTE: Because the top of5150 AutoSport Performance Cylinder Head Services for BMW N53 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