Description
BMW S65 Valves by SuperTech Valve Locks:Valves Only the factory BMW bearings are Strength for Performance Driving S85 V10 CP FPS B58 82.5 9 Bore Options:93 mm the factory BMW bearings are made from tin aluminum which are 5 times harder than a softer lead copper bearing design This valve kit is a top tier upgrade for BMW enthusiasts seeking to enhance their engine's power