Roush Axle Back Exhaust Stainless Steel With Round Tips Kit V6 2011-2014

Roush: 421145
MSRP: $489.99
CJ's Low Price:
1419379200 4671
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CBR13 Play Roush Axle Back Exhaust Stainless Steel With Round Tips Kit V6 2011-2014 Video 1 Play Roush Axle Back Exhaust Stainless Steel With Round Tips Kit V6 2011-2014 Video 3

Product Description

Roush Stainless Steel Axle Back Exhaust Kit with Round Tips for 2011-2014 V6 Mustangs.

ROUSH'S unique open-chambered design provides increased horsepower and torque by increasing airflow and reducing back pressure. Features a distinct aggressive sound without producing an in-car drone or negatively affecting emissions.

Pipes and mufflers are constructed from 409 stainless steel, along with 304 stainless steel exhaust tips with chrome flashing to prevent peeling. No vehicle modifications are required. Installation is quick and easy. Uses factory hanger locations. Fits both Ford factory and ROUSH rear valance. Includes 3 year limited manufacturers warranty.

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Installation Instructions


Difficulty: Moderate

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

Write a Review
Very Loud
I considered various manufacturers axel back kits before ordering the Roush product. I selected the Roush as they claimed little droning in the cabin and it comes with new clamps making it unnecessary to cut the clamps off the stock system. With it installed I was disappointed in the sound. It is extremely "Raspy" under normal acceleration and makes me feel like a target. As long as I take off very easily and keep my foot out of it it's not too bad, but I wish it were quieter. Part of the problem may be that this is the first V6 I have installed a system on so my comparison is to V8's shich in my opinion have a much more mellow tone. I am still evaluating whether to leave the system on or put the stock mufflers back on.
Bill Johnston September 19, 2014
it's great sound and on time thx Pony
ST August 1, 2014
Amazing sound.. simply wow!! That was a drastic change on my v6 mustang.. loving it!!!

sarath August 1, 2014
Forget The Rest!!
I got the Roush exhaust because I wanted my car to sound better at idle and every now and then when I just wanted to hammer down. Sounds deep, and has a great growl to it. But trust me, when you step on it; it doesn't growl, it roars. The package was delivered flawless and nicely packed. Only took me 35 min to install it, due to the thorough instructions. Thank you very much guys!
Gary July 22, 2014
Nice tone
Bought mine from a dealer 3 days ago and installed it in a 2014 V6. Installation was easy; took 25 minutes to install. Looks nice. Does give the feeling of a V8. It is loud. When doing hard acceleration or revving it sounds great. However, when doing moderate acceleration, it does not sound that great and has some drone while cruising. Overall, I am pleased with its performance and would certainly recommend it.
Ray June 15, 2014
Excellent Buy
Sounds good at Idle and start up low rumble and when you plant it...... nice and loud sounds like POWER!
DC June 9, 2014
Great sound
After reviewing others reviews I decided to take the plunge and try them. They are just right. Yes they are loud, but now I love hearing my first auto trans car (in 30 years) shift. Sounds amazing. Highly recommend them.
Randy Cox May 12, 2014
Sounds amazing
This exhaust setup sounds amazing. The tone in and out of the car is just great. Quick and easy installation. Put mine on in less than half an hour.
Billy September 28, 2013
Great sounding exhaust
I ordered the Rousch Axle Back Exhaust 1 week after I ordered my 2013 Mustang Gt Premium. The package arrived before the car...when my car finally came in, my husband installed the exhaust on day 2 of ownership (he said it was an easy installation, although he is a mechanic). I must say I am very pleased with the sound. My GT now sounds like it should. I get alot of looks with the great sound of the exhaust and a hot car. I would definately recommend these to everyone. It is not overly aggressive, but gets the point across.
Christine June 29, 2012
9 Results

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Product Video

By Bill Tumas: We're here with a Roush stainless steel axle back for your 2011 through 2014 V6 Mustang. This system features these Roush mufflers that are made of 409 stainless steel along with 409 stainless steel mandrel bent pipes. The tips are 304 stainless polished and include the Roush logo embossed on the end. The kit includes installation instructions as well as all the necessary clamps. This Roush stainless steel axle back is a perfect way to get an aggressive tone for your 2011 through 2014 V6 Mustang.