Tires aside, they mention that an after market exhaust was installed on that car " to increase the horsepower" . When flash and I took my car to a specialty shop in west LA for the alignment ( after the suspension mods were done ), the shop was installing an after market exhaust on a Carrera GT ! Not the same one, LOL, that one in the shop was a silver color. And at that time the GT was a brand new car, the very same year the model was sold in tne US I believe .. I recall we both scratched our heads trying to figure out why anyone would put an after market exhaust system on a new top of the line Porsche, a vehicle which already sounded like a Formula 1 car, and had more HP than any human being can handle on the street. But I suppose tne owner who spent $ 600 K for tne car thought another $ 25 k for a customized exhaust ( that's what we were told the price tag for the job was ) would " enhance " his driving experience .