Originally Posted by durtydurt
I'd probably run 255/35R18. This would give the same effective gearing as the 09/10 WRX which had 225/45R17 tires (both are 25.0" diameter).
To maintain your speedometer/odometer reading 265/35R18 is another option with this wheel as 9" is the narrowest wheel that is is recommended for that tire size. This tire would have the same diameter as the OEM 11+ WRX 235/45R17 tires (25.3").
Yet another option would be 255/40R18. This would be 26" in diameter which would result in even taller effective gearing. It would also throw your speedometer off by 2.8% so many would probably say this size isn't recommended.
The only concerned that I have is if it would hit the strut when I turn,that 265 tire would fit right with no problems at all? I'm fairly new to this offset and tire stuff.