RCM 4 Stage Dry Sump System with Head Scavenge EJ20/22/25 PIAA but the main ones are

but the main ones are to decrease engine bay temperatures and to speed up the exhaust gas flow

This fan shroud is only compatible with 2

Replacement becomes critical around 100

when fitting this manifold to an EP3

full titanium system offering the sort of unique metallic exhaust note that is only possible from a Ti system

RCM 4 Stage Dry Sump System with Head Scavenge EJ20/22/25 PIAA but the main ones areA key concern with any Subaru EJ engine, which has been tuned for performance or race use, is that of a reliable oil supply. A Dry Sump System can offer levels of safety and reliability which cannot be achieved when utilsing a standard or even baffled wet sump configuration. The RCM system completely scavenges the crankcase, which dramatically reduces the residual oil left in the crankcase and ensures the maximum amount of oil is returned back to the