tires for 15" Rallye wheels

Perhaps there's another consideration, how wide is your current wheel tire package. The Demon has 235/60-15s on 7" rims. The overall diameter of the package is 26.1 inches. However, it is 9.5" wide. Will that fit under your fender? Try http://www.bfgoodrichtires.com/specs/radial-t-a/12.html to find the height/width combo that will work best for you. Good luck.