Exhaust Headers And High Flow Cats

[DJstang06]

Hey guys i have a 06 4.0. I was wondering yalls opinion on headers and high flow cats. I plan on keeping it single outlet. I just took my muffler off a couple weeks ago and now i want it louder lol

 

[DJstang06]

Thanks for all the great opinions

 

[earleys94gt]

Not 100% sure, but I think the Cat options are all set-up for a "dual" exhaust sytem. There may be a single exhaust option out there.

Headers, if nothing else, could add some hp by being more efficient than the stock manifolds.
http://www.americanmuscle.com/0509-mustang-shorty-headers.html

 

[Choppertwo]

Dude, if you're going with header, why in the world would you stay with single exhaust, open up the beast with an X pipe and duels, you won't be sorry-- CHOP