Thread: gtp

Originally Posted by Royalblue

does a k&n coldair intake really make a difference over stock on a 2001 Gtp I have a few mods 3.4 pully magnaflows coldplugs 180-T stat & zzp pcm coming soon

and maybe make ur own thread... or even READ and SEARCH instead of asking questions that have been answered 4756639567934673 times. and to the OP u have a 3 in downpipe by chance?