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SuperTech’s high-performance valve spring kits are precision-engineered for BMW S65 engines
this fitting must be low profile
progressive lockup
20-1992-01
making it an essential upgrade for high-performance BMW engines
B46 High Performance Rod Bearing Set E46 325 SuperTech’s high-performance valve spring kitsEngineered specifically for high performance BMW B46 builds, the 5150 High Performance Coated Rod Bearing Sets deliver exceptional durability and reliability. These rod bearings are treated with a specialized coating by Calico, designed to significantly reduce friction during operation. This enhancement enables the engine to generate more power while minimizing the risk of bearings "spinning" under extreme conditions. What sets 5150 rod bearings apart
