A lot of people have been happy with the GT500 mufflers, I on the other hand like borla and Kooks for axle backs. The MRT interceptors are also pretty dang awesome. We have some of each on hand

 

I hadn't heard much about the MRT Interceptor until I moved into the Boss world where they seem to be very popular.

I have some interest in those now.

 

Well i was looking for alittle louder but trying to stay away from drone. I might go back to some high flow cats like the steeda.

Steeda 2011-14 Mustang High Flow X-Pipe w/ Cats 515-1112GT - Free Shipping!


Borla i do like whats those cost?

 

The gt500 mufflers dont have drone and i dont think the borlas do either. I have roush axlebacks with resonator deletes and offroad x and i get a little drone but its not bad at all. I think bassani dont have drone either i could be wrong on that one. If you dont want drone but want loud and a good tone get the gt500 mufflers.

 

I'm running the GT500s with cat deletes, full 3" cat back with h pipe and , although they don't contribute to sound or volume much, 4" blacked out tips. They have no drone, sound very muscle-y at idle to 3k, and is a bit loud. 68 dB at idle from 10 ft away. After 3k, it changes to an almost Ferrari like sound and gets really loud. UDEAFBRO would think not loud enough, but Johnny Law has already seen fit to pull me over for them.

I'm very pleased with them.

 

Be careful about the Roush ab's. I just sold mine on craigslist I got tired of how loud they were. I picked up some Flownaster american thunders for $200 (great deal/love craigslist) and I love how deep they sound.

They do drone, I personally love drone, and I plan on keeping these on when I go catless. Another thing to point out is the stock resonators. I had a shop cut them out and weld in 3inch pipe. The resonators removed added alot of rasp and volume making the Roush very loud. With a quiter muffler it actually makes it sound meaner and adds some "bite" to the sound. Just food for thought.

 

You name it... I've had it lol.

Advoid any thing magnaflow makes they drone so bad!

Borla stingers sound awesome.

I still have Flowmaster hush powers on my car

 

I still have Flowmaster hush powers on my car

Any sound clips? I'm looking to change my gt500's to something else soon

 

kooks are awesome have it will long tubes and cat deletes. even with the stock manifold it sounded awesome!

 

I have a flowmaster outlaw catback on right now with my cats still on. They have a nice growl to them just rowing through the gears. Cold starts are loud as hell and it sounds like it could make a NASCAR piss itself at WOT.

Now when the 16th rolls around.. I'll have my longtubes, no cats, and my outlaw catback and it'll sound like this.

 

^ Didn't know they were quad tips.

 

Mine aren't, but I'm pretty sure that they either sell a quad-tipped variant. That or it wouldn't be hard to get the axle-backs customized to be quad-tipped.

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or maybe dude who uploaded the video confused them with the american thunders, idk! Either way, it's going sound menacing lol

 

I decided to go with the FRPP SVT Sport mufflers after listening to JJ at Hypermotives video. Although now that I listen to it again I might just swap out the mufflers for the MBRP's lol

 

I decided to go with the FRPP SVT Sport mufflers after listening to JJ at Hypermotives video. Although now that I listen to it again I might just swap out the mufflers for the MBRP's lol

2012 5.0 JBA O/R H & MBRP Cat Back S7226AL - YouTube

Those are made by borla far as I've ever been able to tell. Got to compare my s types when I had them to those mufflers a buddy had. Identical sound minus the tips on the borlas being bigger.

Both of us had O/R X pipes so was a pretty fair comparison.



Sent from AutoGuide.com Free App

 

Love my gt500s with my o/r x. I feel like bo duke at anything over 4k

 

Fo sho!

 

My Boss 302 withBoss 302 MRT Interceptor Axle Back Exhaust - YouTube

Fo sho!

Damn those sound good. No drone with an O/R pipe?

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Yeah they do.

 

Big daddy dyno run #2 - YouTube

On the dyno

Ocean ave - YouTube


Some tunnel in Mexico - YouTube

Loud noises

 

Resonators? Y/N?

 

I might not have a 5.0 but my 4.6 sounds damn good with stock pypes no mufflers and stock tips ..... no drone what so ever loud at start up and at wot and a low rumble at idle ...... I dnt know how to upload my utube video but its under 2010gt with no mufflers 3rd video kona blue gt

 

Well, I think I'm sold on Hush powers!

 

I love the setup in my SIG, I'll post a video soon as I figure out how...

 

+1^

 

I was looking at those MRT's but the Blowmasters sound pretty good too. I might go a different route after I get my LT's.


GT500's with cat & resonator deletes sound great btw.

 

They just still were not loud enough for me. Same with the kooks axle back ill dig up my old exhaust threads in a min

Hushpowers and borla stingers have almost an Identical exhaust note!

---------- Post added at 08:20 AM ---------- Previous post was at 08:19 AM ----------

http://www.moddedmustangs.com/forums/2011/301492-slp-loud-mouths-vs-gt500-axle-backs.html

---------- Post added at 08:21 AM ---------- Previous post was at 08:20 AM ----------

http://www.moddedmustangs.com/forums/2011/302066-kooks-cat-back-review.html

---------- Post added at 08:29 AM ---------- Previous post was at 08:21 AM ----------

Check out Boss Mustangs Online they are probably going to be able to give you some insight there with the O/R question. I think a couple of the guys there have the MRT's

I heard there exhaust in person at mustang week. They are really cool guys. It's not that bad sounds pretty good.

Jayman33 can tell you about the exhaust reving that took place.

Lol when you have hypermotive, MRT, SCT, borla and airlift all in the same parking lol.

 

My GT500's sounded way better when I had stock manifolds on the car. With the LT's they just don't sound right.. Maybe with an H pipe they would sound better along with the LT's, IDK

 

I went with the MRT Interceptors from Jason thanks for all the help guys

 

Sound clips (even shitty one) or banhammer..... :shiftyeyes

 

Thanks brother!

 

I love my outlaws, they do drone like crazy, but not as bad as my new edge with off road x and magna packs lol.. i love drone so no problem to me..

let me play you the song of my people…

 

I love my outlaws, and I have LT's with an off-road H on its way, will post results when I get them installed.

 

Lol when i get them put on ill post up a vid.