kevinmalec

I really like the sound of the SLP axleback exhausts on the GT's. I've heard tons of clips on Youtube and they are loud and deep!!! Plus they are fairly inexpensive!! :-)
Good luck with your decision...

thewarmachine

I used to have Borla stingers, and I loved them. However, they were so smooth sounding that you couldn't get all the throatiness and tonal changes in a Mustang exhaust that sound so nice. I switched to Bassani street mufflers (they are a hybrid straight-through/chambered muffler) and the Bassani X-pipe. I couldn't be happier now. Of course, the BBK shorty headers make the exhaust have that desirable thumping that is missing from the 3v engine.

I have several exhaust setup videos on youtube username tmwtpbrent14

Hope this helps.

CutterWolf

Pypes high flow catted x with Borla stingers, love it! BBK shorty's will be added in next

Joe Cool

I would strongly suggest AGAINST buying the mac boomtubes. I have them set up on my car and within three months they are rusting and look HORRIBLE!!! Plus when I tried to call Mac they said that I should just wash the exhaust and paint it. Would not suggest them in the least

mth21305

I have pypes x-pipe and flowmaster a/t and love it. ive heard the slp loudmouths in person and honestly i feel its way too raspy. the flowmasters will give you that classic american muscle growl, i love it!

Mr2013GT

I love the sound of a Bassani catted x w/ Borla Stingers on the 4.6L

AK_Kayaker

I have to throw the Pypes mid-muffler kit out there, they are a bit of a pain to install, but are for sure loud and rowdy, especially with an off road H or X pipe.

Mr2013GT

That does sound pretty good man, I must admit. Not a fan of the way it sounds without the o/r h or x though, there's something weird about it.

Boogiestang

BBK shorty headers, pipes off road h and Flowmaster AT classic 2 chamber mufflers. A classic deep sound that will get you noticed where ever you are. And I have found that the right tune will make a big difference in sound also. Brennspeed custom tune is what I am running with a SCT3 tuner.

mth21305

just make sure that when you upgrade your exhaust you get an off road x or h pipe, it really makes a huge differance. and a tune as well! i have bama tunes with an sct3 tuner.