what engine do i have?

got a 2004 Grand Prix GT2. Is that the L36???? THinking about putting some KN cool air filters in for some increase HP. is that a good idea?

got a 2004 Grand Prix GT2. Is that the L36???? THinking about putting some KN cool air filters in for some increase HP. is that a good idea?

Filter won't give you too much. Cold air box would be your better way to go.

got a 2004 Grand Prix GT2. Is that the L36???? THinking about putting some KN cool air filters in for some increase HP. is that a good idea?
Here's the best write up I can find on your car. And by the looks of it, a good site. The postage maybe higher, but you save money on the rate of ex.
http://www.highlevelmotorproducts.com/new-vehicles/2004-pontiac-grand-prix.htm

got a 2004 Grand Prix GT2. Is that the L36???? THinking about putting some KN cool air filters in for some increase HP. is that a good idea?
This is what I came up with;

http://img.photobucket.com/albums/v425/kustomkid54/05203.jpg