Hello all I just picked up my 2004 GTP Comp G on Thursday, This came with a k&N intake system on it, the rear pipes arent stock but to quiet to be after market so I am assuming just tips. Otherwise all stock. I have been browsing the forum for few days, tons of great information here. The dealer told me I could swap the pulley and gain 50 horses lol he forgot to mention the supporting mods for (trying to make the sale) but this isnt my first car to mod, its rare to find a quick instant hp gain without supporting mods. But i knew when i went looking for this car. Anyway glad to be here hopefully can be active and get some pics up soon too.
Thanks everyone for all the posted info huge help.