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Will Roush Axle Backs fir 2013 Boss 302?

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Old 11/4/17, 10:40 AM   #1
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Will Roush Axle Back Fit a 2013 Boss 302?

Will Roush Axle Back mufflers fit the 2013 Boss 302? Every place I look they don't have the Boss listed as compatible and a few places state Roush took the Boss off the compatibility list so I am not sure whether they will fit properly or not. If so what is the part number? The ones I have been searching are Roush 421127. Car has the stock rear valance and I want to keep it that way.
Thanks,
Jon

Last edited by steevesj; 11/5/17 at 06:21 PM. Reason: Misspelling
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Old 11/4/17, 01:07 PM   #2
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If not sure, contact Roush.. Problem solved lol.
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Old 11/4/17, 01:09 PM   #3
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Except they do not respond.
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Old 11/4/17, 02:15 PM   #4
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Don't e-mail them, call them.. I've always gotten thru with much better results..
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Old 11/4/17, 02:18 PM   #5
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They don't answer their phones. I didn't see any email option anyway.
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Old 11/4/17, 04:21 PM   #6
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I know, as sometimes it can get really annoying having to wait on hold before a tech support rep finally gets on the line.. I usually find it's best to call either in the AM or mid week, as their not quite as busy on the phone lines with other customers and won't have to wait quite as long in the queue ..

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Old 11/5/17, 06:39 AM   #7
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I can see no reason why they wont fit. Nothing changed from 12 to 13 except the rear valance. Bumper and tail light have nothing to do with the exhaust.
Roush mufflers are very loud. I have them and after several years I'm getting tired of the sound. But then again I also have no cats which puts the sound over the top...Lol
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Old 11/5/17, 06:22 PM   #8
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Roush rescinded Boss 302 fitment for one reason or another so I am trying to find out what the issue is. Has anyone with a 2013 Boss installed them?
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Old 11/6/17, 08:26 AM   #9
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I finally heard from Roush and they state they do not fit. I find it strange that there are many videos with them on the Boss. Does the Boss have a different axle back system than the GT?
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Old 11/7/17, 10:05 PM   #10
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I've been away from the site for awhile but recently picked up a 13 Boss which has Roush 421127 axle backs installed. They fit just fine. They are pretty loud but sound very good with the stock exhaust manifolds and cats.

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Old 11/8/17, 05:29 AM   #11
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I've been away from the site for awhile but recently picked up a 13 Boss which has Roush 421127 axle backs installed. They fit just fine. They are pretty loud but sound very good with the stock exhaust manifolds and cats.
Thanks for confirming this. I could not see why they would not fit.
They are loud!
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Old 11/8/17, 06:49 AM   #12
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Quote:
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They don't answer their phones. I didn't see any email option anyway.
that is strange, I have called them before and got a quick and clear answer with no problem, they were very helpful even though I was calling about an intake that I had bought used off Craig's list . . . maybe a different phone number, pretty sure I used the number I found on their normal sales web site

anyway glad you already got the answer

Last edited by Bert; 11/8/17 at 06:51 AM.
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Old 11/12/17, 11:35 PM   #13
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I pulled the GT500 mufflers and installed the Roush mufflers yesterday. I loosened the muffler clamp, pulled the muffler mount pin from the rubber mount closest to the bumper, then unbolted the other muffler mount. I found if you lower the rear of the muffler you can reach the bolt that is between the front clamp and muffler a little easier. I didn't have a ratchet wrench so it took a little longer to get he nut off. The new mufflers didnt line up perfectly where you clamp the muffler and pipe together so maybe that is why Roush states they won't fit. I just pulled the two together and tightened the clamp. Wow and awesome is all I can say about how they sound. The Boss sounds like a beast! I haven't run it with the side pipes closed yet but it is very loud and mean with them wide open. I'm very happy.
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Old 11/13/17, 07:13 AM   #14
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Now you need to remove the cats. Then you will hear loud..... Plus gain about 15/20hp.
That's where I'm at now. Ive been running roush and no cats for at least 3 years.
I've had enough and have been thinking about installing the cats back. See how I feel in the spring time. Love the power gains but the added noise wears thin on me.
let us know when your finished and how you feel.
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Old 11/13/17, 08:36 AM   #15
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The cats will have to stay. It sounds loud enough with the quad exhaust and Oregon has emissions tests every two years when we renew the car registration.
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Old 11/13/17, 06:09 PM   #16
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The cats will have to stay. It sounds loud enough with the quad exhaust and Oregon has emissions tests every two years when we renew the car registration.
Think you have it bad, here in PA emission test/inspection is every year lol.
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Old 11/14/17, 08:10 PM   #17
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Think you have it bad, here in PA emission test/inspection is every year lol.
Amen brother!!!
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