Thats cool. I am hoping they don't stick out really far over the wheel. I got them off a guy who builds some crazy mustangs. He claimed they had broken belts but we couldn't find anything wrong with the tires. (I change tires at sears still in school).
He had the 275's on 9.5'' wheels on the front and 315's out back. Had oversized sway bars, tokico shocks, tubular a-arms and K member, sportlines, 15psi boost. His 2001 coupe (that car) put down 504hp to the wheels and his 03 cobra puts down 673. Its crazy.
I don't have to many issues with traction now but once I get the 4.10's in I may need them. Couldn't hurt anyways.