5150 AutoSport BMW B58 Engine High Performance Rod Bearing Set5150 High Performance Coated Rod Bearing Sets are made for the demands of high performance BMW Toyota B58 engine builds. Treated shells and coated by Calico to reduce friction, these bearings allow your engine to generate more power and resist "spinning" under stress. These coated bearings also have thermal resistant properties that not only perform in high HP applications like forced induction or race use but also help prevent sudden engine failure