RCM Subaru EJ# Line bore Engineering Process ECU's & Components Beautifully made these are a

Beautifully made these are a stunning addition to your alloy wheels

and manufactured by Roger Clark Motorsport

durable materials

Non-ferrous metals

RCM Subaru EJ# Line bore Engineering Process ECU's & Components Beautifully made these are aSubaru EJ# Line bore Engineering Process At RCM Engineering, precision is at the heart of everything we do. Our Subaru EJ series line bore process has been developed and refined over decades of building and maintaining championship winning engines. Whether its a factory EJ20, EJ22, or EJ25, achieving perfect main bearing alignment is critical for reliability, performance, and oil system efficiency. What is Line boring? Line boring is the process of