20mm wider/5% lower profile than stock give u better handling in general, and will not through ur speedo out much. So 255 with 9" rim is the way to go imo. Overwidth gives too much camber wear and rolling resistance.

Do not go for streched tyre (265-9.5", 255-9", 245-8.5") unless u wanna drift and tyre has stiff sidewall.

using the Perth-WRX mobile app

__________________
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