Tomei Valve Seat Rings for 4G63 Evo/ DSM (TA310A-MT01A) PTP See the ETS FMIC for

See the ETS FMIC for 04-07 STi

Through careful design CORSA engineers have located each oil catch can in an easily accessible yet safe location allowing for ease of serviceability

The outlet side uses the stock o-ring which seals over the throttle body inlet

Part Numbers: Finish: FMDVRSA-34PS

Tomei Valve Seat Rings for 4G63 Evo/ DSM (TA310A-MT01A) PTP See the ETS FMIC forTomei valve seat rings for the Evo and DSM are designed to effectively dissipate heat in the 4G63 engine, preventing cracking. Achieving high engine output under high rotation and load is difficult if cylinder cooling is inadequate, as this leads to high cylinder head temperatures and a low knock limit. Racing engines utilize high conductivity metals, such as copper, for valve seats to manage heat. Beryllium copper alloy (BeCu) is ideal due to its