I just checke my Bassanis, they are 2.5 inches from the bumper. I would think that there would be a problem if it was related to heat. I also have three coats of clear coat on top of the paint. I don't know, but I think that the clear would also show some heat stress (discoloration, cracking) if heat was an issue...
2005 GT Premium, windveil blue, silver GT-style painted stripes, BBK CAI and Shorty Headers, Cat-back Bassani exhaust system. SCT Performance Tune. 20" Shelby Razor wheels,14" eradi-speed rotors, Tokico DSpec shocks, steeda sportlite springs, BMR suspension bars.