Thanks fot your votes guys,I'll get off road X,only problem is I don't know what X pipe gonna fit my MAC L/T headers,name it if you know.
by the way bassani mufflers are between chamber and strait tru mufflers,thy have two chambers and two buffles in side......
checkout LethalPerformance.com they made their own shorty X pipes specifically for MAC Longtubes...even tho the link says 03-04 Cobra Mid-Pipes it'll fit your GT.