

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Morocco.
🖤 Turn heads and own the road with stealthy power.
The 2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit features a unique open-chambered design that increases horsepower and torque by optimizing airflow and reducing back pressure. Crafted from durable 409 stainless steel with powder-coated black 304 stainless steel tips, it offers a bold, aggressive sound and sleek look. Easy to install with no vehicle modifications required, it fits both coupe and convertible models, maintains emissions compliance, and comes with a 3-year limited warranty.
| ASIN | B00KY4YZW6 |
| Best Sellers Rank | #1,635,891 in Automotive ( See Top 100 in Automotive ) #60 in Automotive Replacement Axle-Back Exhaust Systems |
| Brand | Roush Performance |
| Customer Reviews | 4.9 4.9 out of 5 stars (16) |
| Date First Available | March 8, 2013 |
| Item Weight | 26 pounds |
| Item model number | 421145-BLK |
| Manufacturer | Roush Performance |
| Manufacturer Part Number | 421145-BLK |
| Model | Axle Back Exhaust with Black Tips |
| Product Dimensions | 21 x 24 x 10 inches |
A**Y
Sounds amazing, easy to install.
Installed on my son’s 2013 v6 mustang. As long as you get an exhaust hanger removal tool it was extremely easy to install in about 2 hours. Sounds incredible. I couldn’t believe the sound for such a low price.
R**E
Sounds amazing!
This set up is amazing on my 2014 Ford Mustang 3.7 V6. Better than I expected and I highly recommend. It arrived before stated date. I had it installed by a great auto shop and only cost me $120.
N**S
Worth it
Just got this on May 5th. I know it's simple to install but I took it to a reputable shop since I had no access to tools. Installation was 100 bucks in Dallas texas. As far as the mufflers themselves, wow. They sound amazing. Nice, deep rumble when starting and at idle, as well as cruising speed. Floor it and the thing screams. It's awesome. Very loud. Gearheads will know it's a v6, but your average person will think its not;)
A**N
Amazing value, great sound! Not too loud.
Arrived a day early, although I'm sure that will vary depending on where you're ordering from. Sounds amazing! If you short shift, it wont bother your average Joe but when you take it to 3k rpm, it makes the perfect growl, and anything above that has the potential for amazing backfires in 2nd and 3rd gear. I gave a 4 star review instead of 5 because it was advertised with black tips but came with chrome. Not a big deal to me but still false advertising.
J**Y
Perfect
I spent weeks researching all different types of axel backs. Absolutely zero regrets with these. Love them! Loud when I want them to be, but quiet when needed (neighborhoods). Really woke up the sound of the car. Don't hesitate, but the Roush Axel Backs, I plan to do shorty headers and a Roush Cold air intake next. That seems to deepen the tone.
D**E
Best bang for your buck, don’t waste your time on anything else unless its the borla ataks.
Hands down best axle back for your 3.7. This or the borla atak paired with shorty headers are the closest thing you will get to a v8 in terms of sound. Only difference between these and the borlas is these drone like a mf and the borlas dont drone whatsoever, so thats the trade off in terms of price. If your like me and you’re cheap, then get these. Drone is bearable WITH the radio on. Also, word to the wise, never remove your stock cats, the rasp and drone will literally wake up your entire neighborhood and sounds like absolute rice if you do.
A**R
Really super loud which is exactly what my son wanted
Really super loud which is exactly what my son wanted. It sounds like you are going really fast but you aren't which is what his parents want. Safe compromise.
A**R
Sounds like a Italian super car
Super loud. Good build quality. My neighbors hate me now.
Trustpilot
2 months ago
3 days ago