I have an 04 GT and i picked up 18 inch FR500, 18x9 in the front 18x10 in the rear. American Muscle recommends 275/35/18 in the front and 285/35/18 in the rear. I'm going for an aggressive staggered look, so the rears should be fine. Are the 275's to big for the front though?

Is there with pic of a similar setup just soI could see the stance?

 

Right up my alley, Sliver. I would recommend you go with Michelin PS2's ~ 275/35/18"s up front and 295/30/18"s out back. Install some 1/2" spacers onback (may require longer studs as mine did) and will run the tire up to the edge, but not past the wheel well.This is what I run, and best tire I have run on so far. You can look in my gallery and see some pics. At the time they were taken, I was running 265's and 285's and no spacers, but you will get the idea. I am now running 10.5" Saleenreplicas out back so I will go 315's next time around

Good luck, and post some pics when done

jazzer