hello everyone..just purchased my 2008 grand prix gxp about a week ago, car had about 52,000 miles. so far ive done a muffler delete which made it sound perfect by the way..no rasp just a deep straight through sound, ive put a drop in k&n filter since the air box looks to have a pretty good design. also put a hayden trans cooler which drop temp from 195 to 170, and 8k h.i.d. low beams. let me know what you guys think..thanks for reading
think next on my list is black plasti dipping the wheels to make it look like this.