So I finally got a chance to dyno my car yesterday. I just reinstalled a JDM Sam tuned unichip(mail order tuned) last week so wanted to see how it did
mods are injen cai converted to sri, ms3 forge bpv, turbolife fmic, sls catted 2.5 inch midpipe, thermal catback and as mentioned the unichip...
you wanna roll when you can feel the tire close enough to the unrolled lip
I ran 215/45's on a 7 inch wheel with +38 offset and it rubbed at stock height/camber with weight in the back
if that gives you an idea
sidewall height is about the same between 215/45/ and 235/40
bthen again without proper camber adjustments, and fender work, they WILL rub too much to comfortably drive so 225 is a nice medium