I've made quite a few mods to my 2002 GTP since I bought it last September. I started with new stainless, high-flow mufflers, then did a Thrasher Cold Air set-up. Next I changed out the 3.8" supercharger pulley for a 3.4". Traded out the 195 degree thermostat for a 180. I had the u-bend in the exhaust replaced with a straight piece of pipe. The most recent mods have included tinting the glass and trading out the 16" Polished Torque Star wheels, and the shitty Goodyear banana peel for a set of 17" Borbet Type M wheels and BFG Comp TA tires.
The GTP has embaressed more than it's share of "sports cars." Nothing sucks worse than getting OWNED by a 4-door grocery getter!!