Okay, looking at a forum members et20 18x8.5 5x100 rs4 reps, I checked on the calculator and it said 2mm poke up front and 4mm inside fender rear, does that mean I cant use them because theywill rub up front? thanks..... oh the tires are 215/40/18

 

This does seem to be wheel question week.
I did a lot of research before buying my wheels and was told the widest I could go up front was 8" with 225/45's. Offset 35mm. However, I have seen photos of TT's claiming to have 9.5's in the front. I don't know if that helps, or if being outside 2mm will cause a rub. 2mm is not much, and seems you may be able to make "adjustments" to your wheel wells if necessary. It would suck to buy new wheels and tires and have them rub.

 

.

 

You'll be fine. A little poke won't kill you...remember "if ya ain't rubbin ya ain't dubbin"

Matter of fact you're going to be close to the setup I'll be running...8.5" 19's ET35 front and rear with 15mm and 20mm spacers, respectively.