Thats exactly what I did, except I have a butler tbe. Love AEM's sound

Is fuel pump necessary for street use? Can someone add comments on this?

Other than that, using BP98, good oil, shorter oil change interval and proper warmup r also important.

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