I have a 2006 Tungsten Gray GT that is mostly stock. I was wondering if anyone has heard any concerns with the Chip Foose Nitrous Black Wheels? I am also needing to know if I need to make any modifications if I put 20x8.5 with 255/35-20 on the front and 20x10s with 275/35-20 on the rear.

 

your good to go, those rims fit nicely, and your sizes look perfect, exactly what i have just american racing 20's

 

The foose rims look great onour cars, I have the nitrous blacks on mine in 20's. 20 x 8.5 up front on nitto 555's 255/35/20 an on the rear im running 20 x 10's with nitto 555's 285/30/20

 

 

I have a set for sale of the Foose DF5's in chrome, 275/35-20 rear, 255/35-20 front, with Nitto 555's. I ran them for about 2000mi before deciding I didn't want 20's (just personal preference...they looked awsome). I ran them with the Eibach Sportlines, and never had any problems with rubbing. (The Sportlines will be available soon, with the rims) If you'd like to see a pic, PM me your email and I'll send you a few. I'm asking $2200 for the rims, tires, and springs. New condition.
As far as fit, you're good to go.

 

go with a 285 rear. everything else is legit. and lower it with sportlines, the look is worth it. and the handling with the springs and 35 sidewall.

 

fit wise you are fine. some people have run into a problem with certain aftermarket brake upgrades and have needed wheel spacers. if you don't plan on changing your brakes -no issue. if you may just know you may be limited to which ones you get or you may need the spacers.