2005-09 Roush Extreme Axle Back/Muffler Deletes
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From: Carnegie, PA
2005-09 Roush Extreme Axle Back/Muffler Deletes
I'm looking to replace my Magnaflow street axle backs with either the Ford Performance FR500S (GT500KR) axle backs or my first choice of 05-09 Roush Extreme axle back/muffler delete resonators.. Anyhow I'd like to know as to which would sound best on a 05-09 GT 3V, as I'm looking for that deep, throaty aggressive sound, but don't want the annoying cabin drone while cruising at highway speeds.. I'll also be pairing them with the "OEM" catted H-pipe and stock exhaust manifolds.. In the meantime, here's a link and image for the 05-09 Roush Extremes..
http://www.americanmuscle.com/roush-...back-0509.html
http://www.americanmuscle.com/roush-...back-0509.html
Last edited by m05fastbackGT; May 10, 2017 at 06:47 AM.
Just by looking at those Roush pipes, I think it is safe to say they are going to be LOUD. Not sure if that means they will drone.
The great thing about the FR500S mufflers is that they produce zero drone, and volume is moderate on light throttle cruise. When cruising on the highway you can hear the exhaust if you listen to it, but it is easily drowned out with the radio and no problem for a normal conversation. Heavy throttle and/or high RPM and they do get quite loud. I have had several people comment that my car is one of the best sounding at Track Night.
But the FR500S are expensive for sure . . .
The great thing about the FR500S mufflers is that they produce zero drone, and volume is moderate on light throttle cruise. When cruising on the highway you can hear the exhaust if you listen to it, but it is easily drowned out with the radio and no problem for a normal conversation. Heavy throttle and/or high RPM and they do get quite loud. I have had several people comment that my car is one of the best sounding at Track Night.
But the FR500S are expensive for sure . . .
Last edited by Bert; May 26, 2017 at 10:28 AM.
Thread Starter
SUPERCHARGED RED ROCKET ------------------Master-Moderator






Joined: May 11, 2006
Posts: 10,648
Likes: 2,519
From: Carnegie, PA
So don't be too surprised if you end having to do the same with yours

Just by looking at those Roush pipes, I think it is safe to say they are going to be LOUD. Not sure if that means they will drone.
The great thing about the FR500S mufflers is that they produce zero drone, and volume is moderate on light throttle cruise. When cruising on the highway you can hear the exhaust if you listen to it, but it is easily drowned out with the radio and no problem for a normal conversation. Heavy throttle and/or high RPM and they do get quite loud. I have had several people comment that my car is one of the best sounding at Track Night.
But the FR500S are expensive for sure . . .
The great thing about the FR500S mufflers is that they produce zero drone, and volume is moderate on light throttle cruise. When cruising on the highway you can hear the exhaust if you listen to it, but it is easily drowned out with the radio and no problem for a normal conversation. Heavy throttle and/or high RPM and they do get quite loud. I have had several people comment that my car is one of the best sounding at Track Night.
But the FR500S are expensive for sure . . .


