ensuring reliability when it matters most

5150 High-Performance Coated Main Bearing Sets deliver unparalleled durability and efficiency for the BMW S54 engine

Big Bearing (44

not only will it produce 30-percent greater cooling capacity

this conversion restores direct control between the throttle pedal and throttle bodies

5150 AutoSport High Performance Main Bearing Set, BMW M30 14938 ensuring reliability when it matters5150 AutoSport's High Performance Coated Main Bearing Set for BMW M30 engines is engineered for maximum durability and efficiency in high performance builds. Coated by Calico, these bearings reduce friction, allowing the engine to generate more power while resisting wear from extreme stress and high RPMs. The advanced thermal resistant coating makes them ideal for forced induction and racing applications, providing reliable protection even during oil