What is the biggest size slick I can run on my car without cutting?
On the 94 and up Mustang GTs you can run a 15×10 rim with 6.5 BS and clear the brakes and wheel wells. This wheel will also fit a Cobra, but grinding of the caliper for clearance will be necessary. The biggest slick for those rims would be a 28×10.5×15 MT ET Drag. This will barely clear the wheel wells. Most naturally aspirated street cars will only need a 26 inch drag tire to hook up where power adder and higher HP NA cars will benefit from 28 inch slicks.
