Biffster

I have to agree with dcarlinf1 above. I had the GT500 axle-backs put on about 2 months ago and absolutely love them. When I bought my mustang new, I thought it was just too quiet. I wanted a more aggressive sound, but I have zero tolerance for drone. Thanks to the folks on this site, i was directed to the GT500 option. You can see several vids on Youtube.

Now, with them mounted, the GT barks at start up and sounds fantastic when I get on it. At cruising speed, there is zero drone and it's nice and quite (inside). For me it was the perfect setup. Hope that helps.

WJBertrand

I am really enjoying the Borla AB touring exhausts on mine. Just enough additional rumble without being obnoxiously loud. No drone either.

SterlingGrayTrackPack'14

Anyone ever try the BBK Varitune axle back? Thats what I am looking at right now. Tunable from mild to wild seems pretty cool, have a look.
http://www.americanmuscle.com/bbk-va...um-1114gt.html

tenfifteen

Borla S-Type/Stingers here. They're a little loud on cold start and idle, and definitely under full throttle, but are just rumbly at other times. Zero drone in my experience.

Mrbobcat

From the videos, I like the Flowmaster Hushpower sound the best so far. Does anybody have one of theirs on their car for a review?

BrazenStang

They are quiet. I don't have them, but a friend of mine has them. He switched them out for pypes bombs.

OP, For a good axleback that is not obnoxious I would go with the GT500. Killer sound, killer price, and won't get you pulled over for cruising.

Roush and flowmaster outlaws have amazing sound, but I would have to say too much noise based on your first post.

need4speed

Hey man there is no wrong choice when you are trying to decide on which exhaust system to outfit your mustang with, these 5.0's sing no matter what you pair them with. All it boils down to is your preference on whether you want mean deep grumble, or a machine that you can hear screaming from a mile away.

rjstubbl

Another vote for the GT 500 exhaust. Great sound, no drone.

Mishri

I'd like some axleback exhaust, already have an off-road X-pipe. MAC boomtubes on my 2007 GT were awesome.

I have to hear exhaust in person, I don't trust videos. Not many people around here have 5.0s, and those that do, few have any modifications. I've heard a lot of people recommend GT500 exhaust, was hoping that MAC made a good axle-back for the 5.0 as they did for the 3-valve.

SterlingGrayTrackPack'14

So know one with BBK Varitunes yet??? Youtube only has the AM video and BBK's clip, but no personal videos that I have found.