Engine Internals – Subaru EJ20 / EJ25

The Subaru EJ20 and EJ25 engines are iconic powerplants used in performance models like the WRX and STI. Known for their turbocharged flat-four layout, they offer great tuning potential—but demand strong internals when pushing the limits.

At Chicane Australia, we offer a complete range of engine internals for EJ20 and EJ25 engines including forged pistons, H-beam and I-beam rods, race-spec bearings, multi-layer steel head gaskets, and valvetrain components optimised for high-RPM and high-boost applications.

Choose from trusted brands like CP Carrillo, ACL, ARP, Cometic, GSC Power Division, and Supertech—proven in street, rally, and time attack builds worldwide.

Upgrade your EJ build with confidence using the best internals available in Australia.