Front wheel 17" x 9.5 / 56mm
Rear wheel 18" x 10.5 / 56mm
Bolt pattern 5 lug, 4.75

I'm not sure if the offset is correct?

 

17x9.5" 56mm offset is fine.

18x10.5 56mm offset puts the inner edge of the wheel/tire in the same place as the 17x11 50mm wheel (7.94" BS). About 50% of the people find they need to cut the edge off the jounce bumper bracket, hammer the inner fenders or recenter the body over the axle with an adjustable panhard rod. The other 50% indicate they fit with no problems. I suspect you will find the jounce bumper bracket catches the inside of the rim when you jack the car. You would be better off with a 50mm offset on the 18x10.5" wheel.

 

Thanks for the help. Unfortunately I don't think the company offers any other offsets. Is it possible for a wheel shop to take off 6mm? If so how much do you think they would charge?

 

Removing material from the mounting surface would INCREASE the offset, and probably weaken the wheel. Do a "search".... there are people using these wheels. Find them and ask. Each car is a little different as to what fits and what doesn't. 50% of the people have problems with that backspace and the other 50% don't. There is no logic to it. Others choose to run spacers and longer studs, although a lot of people also don't like to use spacers.

 

Thanks for the help. I think I'll take the chance and make em fit.

 

im getting liek the same size but z06 rims, so do you think it would fit if i had an adjustable panhard rod, and hammer the inner fender, then would it work?
thanks