Well its up for sale again, the person that wanted it didnt fall through so im selling it again. its 250 shipped or 200 local pickup. Its the AMSS downpipe and it retails for like 400 bucks, so if anyone wants it pm me or post here
im not sure if it will fit a GT, if the gt has the same downpipe than yes it will fit. YES it has a high flow cat on it, it comes with the dp. Like i said i already fixed all problems with it so that it will directly bolt on, i did not dyno so i dont know about gain. it also has no resonator, so its has less restrictions
TTT cmon guys lots of interest but no definite yes or no yet, its already done up for you, all you need to do is bolt it on and go. I did all the extra work including fixing the ground clearance on it so it wont scrape at all!!!