Description
5150 AutoSport Turbo Camshaft, BMW M20 Cylinder Head:M20B27 2mm steel top ring that’s Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers 2mm steel top ring that’s PVD (Physical Vapor Deposition) coated This is the most reliable and durable option for the E9X M3 market