WPC Treated Rod Bearings for the BMW 3 Series

The two largest enemies of any high-performance engine are heat and friction - WPC has found a way to reduce both. WPC treatment is not a coating, it’s a metal improvement process utilizing high-speed micro peening technology giving higher compressive stresses creating a harder more durable finish which also creates oil retention pools which prevent oil starvation.

WPC is a surface treatment that reduces friction and adds strength, two improvements that benefit your engine.

What's better than using Original BMW rod bearings in your next engine build? WPC-treated OEM bearings!