i have a 2000 sunfire gt with the 2.4l in it. im upgrading the exhaust since mine decided to rust out and fall apart while driving. i have the headers and am going to order a pacesetter cat back. all 2.25" piping. i was wondering what size cat converter i need. length wise. 13inch, 15 inch, 16inch. im not sure what would work. thanks.

john clair wrote:i have a 2000 sunfire gt with the 2.4l in it. im upgrading the exhaust since mine decided to rust out and fall apart while driving. i have the headers and am going to order a pacesetter cat back. all 2.25" piping. i was wondering what size cat converter i need. length wise. 13inch, 15 inch, 16inch. im not sure what would work. thanks.

It really depends on where the header stops. About any size can be made to work (tubing can be added to the cat or cut from the cat-back).