With how aggressive those wheels are, the rears are not going to fit with out some serious work. Rolled and pulled fenders, lots of negative camber.

Even with stretched tires, you are going to have to roll all your fenders at a minimum.

Granted, this is all dependent on your suspension. Are you lowered? Plan on being lowered?

 

I don't plan on lowering anytime in the future. I thought that maybe coupes had more spacing in the back?

 

The coupe does have slightly more rear wheel clearance, but with an 18x10 et25, it won't be enough. You are going to poke and rub with a 18x10 et25 with a 255.

Look at this thread. This is how much an 18x10 with a meaty tire is going to poke. Even at stock height, your fenders are going to HATE you.

http://forum.e46fanatics.com/showthread.php?t=1064860

If you are set on running those wheels, you could probably make the 18x9 et30 work all around on your car.

 

+1. The fronts would just require some rolling, but those rears are definitely going to poke and rub, even with a 255. Even a higher offset like ET35-40, you'd still be looking at rolling and pulling the fender, but at least its a lot less work than with the ET25.

 

Just run 18x9 et30 all around. If you are a perfectionist, a 5-10mm spacer on the rears will flush them to match the front.

 

that's what i exactly will do! thanks for all your help :thumbup::thumbup: