Ok i just ordered american thunder flows cat back for my gt mustang... i need a catless h pipe now mac or bbk it needs to one fit the american thunder exhaust "2.5" and two fit my stock headers... will this work?
http://www.mustangtuning.com/9495gt-mac-offroad-h-pipe.html
http://www.mustangtuning.com/9495gt-mac-offroad-h-pipe.html