Originally Posted by Porschefile
I run 18x10 et25 with 275 continental slicks (which are as wide as many 285 street tires). Fits fine with a 5mm spacer up front to clear the KW CS spring perch. It fits OEM struts without spacer.
That doesn't say much in regards to OP's question. A 10.5" ET25 will be 11mm closer to the strut compared to your 10" ET20.
Originally Posted by chuxdelux
Are you running a 275 up front? How close are you to the fender. How much camber are you running up front?
Not sure how close. Haven't measured. Far enough that it doesn't rub. Close enough that it looks pretty good.
I think a 10" wheel is easier to fit on most suspensions, and easier to use more tire out off ie you could put wider tires without rubbing on a 10" ET25 but I wanted a square setup that works well AND fills the fenders (track camber sunks wheels in) without ever needing spacers. 10.5 ET 20 does it.
Haven't tried 285s yet but will.