Imo, it will make a difference in gd & gc turbo cars. But u need a tune.

On gr/gv, technically cai wont do much. But my intake temp reading is up to 20c lower. Sth to think about.

using the Perth-WRX mobile app

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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR

Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport