RCM Cylinder 4 Cooling Mod Kit - Motorsport Spec Exhausts_Thermal Management The crank is induction hardened

The crank is induction hardened to be extremely resilient to wear and provides a great foundation for any performance engine

long since dissapeared from production

Driveability is similar to the stock clutch

Increased clamp loads give the necessary capacity to handle modified engines

not to mention the sound

RCM Cylinder 4 Cooling Mod Kit - Motorsport Spec Exhausts_Thermal Management The crank is induction hardenedCylinder 4 cooling has long been a recognised weakness of the Subaru EJ engine family. Due to the design of the water passageways in this area, coolant flow around cylinder 4 can be limited, leading to elevated localised temperatures. Over time, this can contribute to increased thermal stress and potential engine issues. RCMs simple and effective solution addresses this problem with an easy to install, complete kit. Our kit utilises billet fittings