im goin with some foose nitrous 20s and would prefer the extra width if it works. i plan on goin 8.5 wide in front and 10.5 in bakc if it fits in there, otherwise drop it down to 9.5 :-(

 

It really will depend on the offset for your wheel... I'm running 275/35/ZR20's on a 20X10 inch rim with absolutely no clearance problems... Seems to be plenty of room for an extra 1/2 inch... I'm sure Foose designed the wheel properly to fit the Mustang, but it wouldn't hurt to give them a call to confirm.... My car has also been lowered approximately 1 1/4 inches....

 

285-35-19s on 9.5s and I want to go bigger. At least 295s...