Hey, Terry, would this be an option for someone who wants to run some super-wide tires front and rear without quite as many sheet metal modifications, or do you think this kit is more for "hard parkers"?
http://www.modbargains.com/Ford-mustang-5.0-gt-apr-widebody-kit.htm
Besides what Jason noted above, I'll put my money on hard parker just based on the things Terry highlighted on the design of their flares. The back of the tire needs to be open and it lacks any substantial fender vents. Not to mention it looks unnecessarily heavy and the "Brake Ducts" are unnecessarily large... That kit adds more tire but is not aerodynamically ideal.
This is how you do a widebody:
