Thread: Mods for my 98 GTP

Originally Posted by ILoveGM

I'm aware. I'm not a dumbass. I'm just saying, don't go too far for safety's sake

I see what you're saying! And one of my mom's friends is on the pit crew for Kevin Harvick in NASCAR. I called him today and he said that the slim performance gain on headers is really not worth it. He said if it were hi, he would throw on a solid 3" downpipe, Fendersell intake, colder spark plugs, tune, and a 3.5" pulley!