For serious performance builds

1987-1988     E28     M5 [American Market]

unterminated wires on the other

boosts combustion efficiency

The OEM fuel filter is replaced with a high-flow Radium Engineering fuel filter

M54 Cylinder Head Service by 5150 AutoSport Service:Pro-Xtreme For serious performance builds5150 AutoSport Performance Cylinder Head Services for BMW M54 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