Description
M54 CNC Cylinder Head Porting 11 21 7 838 319 ARP Oil Sprocket Bolt – Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers ARP Oil Sprocket Bolt – Secure high RPM cam timing with superior fatigue resistance over factory bolts Add some additional reliability and engine bay styling with the Mishimoto BMW E46 Silicone Radiator Hose Kit