--- product_id: 1380980 title: "2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit Black Tips" brand: "roush" price: "€ 1199.56" currency: EUR in_stock: true category: "Roush" url: https://www.desertcart.pt/products/1380980-2011-2014-mustang-roush-v6-3-7-axle-back-dual store_origin: PT region: Portugal --- # Boosts horsepower & torque Sleek powder-coated black tips Easy bolt-on installation 2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit Black Tips **Brand:** roush **Price:** € 1199.56 **Availability:** ✅ In Stock ## Summary > 🖤 Turn heads and drop jaws with every rev — the stealthy power upgrade your Mustang deserves! ## Quick Answers - **What is this?** 2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit Black Tips by roush - **How much does it cost?** € 1199.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/1380980-2011-2014-mustang-roush-v6-3-7-axle-back-dual) ## Best For - roush enthusiasts ## Why This Product - Trusted roush brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Durable 409 stainless steel pipes and muffler paired with corrosion-resistant 304 stainless steel black tips. - • **Power Unleashed:** Open-chambered design maximizes airflow, reducing back pressure for a serious horsepower and torque boost. - • **Signature Sound:** Aggressive, drone-free exhaust note that commands attention without cabin discomfort. - • **Clean & Compliant:** Maintains factory emissions standards so you can upgrade without compromise. - • **Effortless Upgrade:** Direct fit for 2011-2014 Mustang 3.7L V6—no modifications needed, just bolt on and roar. ## Overview The 2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit features a unique open-chambered design that enhances horsepower and torque by improving airflow and reducing back pressure. Crafted from durable 409 stainless steel with powder-coated black 304 stainless steel tips, it offers a sleek look and aggressive sound without affecting emissions. Easy to install with no vehicle modifications required, it fits both coupe and convertible models and comes with a 3-year limited warranty. ## Description Unique open-chambered design provides increased horsepower and torque by increasing airflow and reducing back pressure. Distinct aggressive sound. 409 stainless steel pipes and muffler. 304 stainless steel exhaust tips with chrome flashing helps prevent peeling. Installation is quick and easy. Uses factory hanger locations. No vehicle modifications are required. Does not negatively affect emissions. Fits both Ford factory and ROUSH rear valance. No in-cockpit boom/drone. 3 Year Limited Warranty. Fits manual and automatic. Tips have oval-shaped openings: 4" x 4.5". Includes the following: (1) LH Muffler Assembly, (1) RH Muffler Assembly, (2) Round Powder Coated Black Exhaust Tips, (2) Inlet Pipe Spherical Clamps, (2) Exhaust Tip Clamps, (1) Installation Manual ## Features - Fits 2011-2014 Mustang 3.7L V6, Coupe and Convertible - Unique open-chambered design provides increased horsepower and torque by increasing airflow and reducing back pressure - 409 stainless steel pipes and muffler 304 stainless steel exhaust tips that have been powder coated black - Does not negatively affect emissions - Same as Roush's regular 421145 V6 exhaust but with black tips ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00KY4YZW6 | | Best Sellers Rank | #1,957,074 in Automotive ( See Top 100 in Automotive ) #74 in Automotive Replacement Axle-Back Exhaust Systems | | Brand | Roush | | Customer Reviews | 4.9 4.9 out of 5 stars (16) | | Date First Available | March 8, 2013 | | Is Discontinued By Manufacturer | No | | 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 | ## Images ![2011-2014 Mustang Roush V6 3.7 Axle Back Dual Exhaust Kit Black Tips - Image 1](https://m.media-amazon.com/images/I/41hEZKJhZ3L.jpg) ## Questions & Answers **Q: Does it fit to mustang 2017 v6?** A: No only 2011-14 **Q: Dies it sound like a 5.0?** A: No, we can't make these v6 motors sound like a v8 but these mufflers have an unique tone to it. They sound raspy past 3,000 rpm but an intake and shorty headers will deepen the tone a bit and you can also add a cheap x pipe and dynomax race bullets to deepen the tone ever more. That's the closest you'll get to a v8 but it will still be a mile away from sounding like it.. The unique tone that I'm talking about is like a GTR. Also if you buy these it's an easy install. You won't find an exhaust that sounds like this. For warning if you have a v6 mustang don't do a cat delete because it's completely a nasty raspy cringy roar past 2000 rpm. **Q: Will this fit an automatic?** A: Yes, the exhaust fits manual or automatic transmission 2011-2014 V6 Mustangs. **Q: how much HP increase using roush axle back exhaust ?** A: This system is more for exhaust sound and looks. Axle-back systems do not have large performance impacts. It will relieve exhaust back-pressure and allow the engine to "breathe out" better. How much that helps is case-by-case. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/1380980-2011-2014-mustang-roush-v6-3-7-axle-back-dual](https://www.desertcart.pt/products/1380980-2011-2014-mustang-roush-v6-3-7-axle-back-dual) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-22*