hey guys i briefly did a search on this and didn't find a answers, can you use a h pipe from a mach 1 on a 2001 GT. the reason i ask is i have a set of bbk LT headers and h pipe for a mach 1 sitting in my barn and my dad is looking at buying a 2001 Bullitt this next week. so i figured if the h pipe will work then why not put it on the car. i know that he will have to get headers because the exhaust ports are shaped differently. thanks in advance to all who reply. also does anyone know of any problems that the bullitts had.