and thanks for the replies everyone!

 

I still haven't lowered my car yet, because my mechanic postponed my appointment :/

But today we tried my rear alloy's on a friend's car, which is lowered on Tein springs... and they didn't rub




I think DCon67 is right, the wheels do pivot inwards when they move up. It looked basass with such an aggressive offset, and these tires really are wider than normal 245s. They look like 255s from the back.
We went for a spirited drive and there was no rubbing at any point. Oh, and the difference in grip was AMAZING!
He has Toyo T1-R on his black alloys, with 235/45/17 in the back. It was constantly sideways on the Toyos .. dangerous to be honest.
With my F1s, it gripped like glue, even on bad tarmac.

 

Any modifications to your friend's fender or liner? S-tech or H-tech springs?

 

Nope, 100% stock.
They are s-tech afaik .. Green ones

 

youll be fine...Im Running 18x9.5 all around with a drop. 255/35 Rears and 245/40 fronts...Even withought a roll dont think I would have too much problem out back. Think youll be fine...