We don't have to do that every time, do we?

Since asked, he jas a civil engineering and accounting double undergead degree from curtin and postgraduate mech engineering degree from US and mechnic licence from japan, hence the connection from Japan.

Back to topic, I thinl oem senser onlu good for 12-14 afr, so tuner need a wideband to monitor afr properly.

Its not a particular dyno graph I refer to. Just to clarify it.

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