--- product_id: 47292657 title: "Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack" brand: "roush" price: "€ 1591.99" currency: EUR in_stock: true reviews_count: 4 category: "Roush" url: https://www.desertcart.hr/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack store_origin: HR region: Croatia --- # Aggressive sound tone & volume Higher airflow, less back pressure Fits 2011-2014 Mustang GT & GT500 Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack **Brand:** roush **Price:** € 1591.99 **Availability:** ✅ In Stock ## Summary > 🏁 Turn heads, not just corners — ROUSH your Mustang’s soul! ## Quick Answers - **What is this?** Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack by roush - **How much does it cost?** € 1591.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack) ## 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:** Open-chambered muffler design eliminates fiberglass packing, ensuring durability and a clean sound for miles. - • **Unleash the Roar:** Experience the signature ROUSH aggressive exhaust note that turns heads and commands respect. - • **Power Meets Precision:** Optimized airflow reduces back pressure, boosting horsepower and torque for that extra edge on the road. - • **Cruise Without the Boom:** Enjoy performance without the annoying in-cabin drone at cruising speeds—comfort meets power. - • **Perfect Fit for Mustang Legends:** Specifically engineered for 2011-2014 Mustang GT 5.0L V8 and 2011-2012 GT500 5.4L V8 models. ## Overview The ROUSH Performance 421127 Axle-Back Exhaust Kit is a precision-engineered upgrade for 2011-2014 Mustang GT and 2011-2012 GT500 models, delivering an aggressive, signature ROUSH sound with increased horsepower and torque. Featuring an open-chambered muffler design without fiberglass packing, it ensures durability and reduces in-cabin drone, making it the ultimate blend of power, style, and comfort for Mustang enthusiasts. ## Description The ROUSH Axle-Back Mustang Exhaust Kit with Round Tips, designed to fit the 2011-2014 Mustang GT & 2011-2012 Mustang GT500, is an innovative exhaust system from ROUSH that features an open-chambered designed muffler (as opposed to conventional fiberglass-packing). The result is an aggressive sound that is unique to ROUSH, increased longevity (with no fiberglass packing), and increased horsepower & with additional airflow. Another added benefit of this system is the lack of the in-cockpit boom normally found with performance exhaust systems at cruising speeds. Review: 2013 mustang gt - Sounds amazing, great quality, highly recommend. Review: Absolutely music to my ears for the money!! - This is absolutely hands down the best sounding Axle-Back exhaust system available for a Mustang. Then again, it’s Roush!! It is what I would expect. ## Features - Fits 2011-2014 Mustang GT 5.0L V8 & 2011-2012 GT500 5.4L V8 - Upgraded aggressive sound tone and volume - Provides higher air flow and less back pressure for increased horsepower and torque ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07565NMK4 | | Best Sellers Rank | #2,342,284 in Automotive ( See Top 100 in Automotive ) #94 in Automotive Replacement Axle-Back Exhaust Systems | | Brand | Roush | | Customer Reviews | 4.0 4.0 out of 5 stars (13) | | Date First Available | August 23, 2017 | | Item Weight | 27.6 pounds | | Item model number | 421127 | | Manufacturer | Roush Performance | | Manufacturer Part Number | 421127 | | Product Dimensions | 21.5 x 10.25 x 24 inches | ## Product Details - **Brand:** Roush - **Material:** Fiberglass - **Vehicle Service Type:** Car - **Installation Type:** Bolt-On - **Manufacturer:** Roush Performance ## Images ![Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack - Image 1](https://m.media-amazon.com/images/I/411gx4SNMPL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 2013 mustang gt *by P***L on September 5, 2025* Sounds amazing, great quality, highly recommend. ### ⭐⭐⭐⭐⭐ Absolutely music to my ears for the money!! *by R***E on October 24, 2023* This is absolutely hands down the best sounding Axle-Back exhaust system available for a Mustang. Then again, it’s Roush!! It is what I would expect. ### ⭐⭐⭐⭐ Louder that thought *by K***. on November 17, 2019* Seems to be a lot louder than in their video. Look good, and the Shelby is putting out 620 Hp, without much effort. ## Frequently Bought Together - Roush Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack - Ford Racing M20201S197 Strut Tower Brace for Ford Mustang,Black - Raxiom Sequential Tail Light Harness Kit with Tuning Plug and Play Wire Fits Mustang 2005-2009 --- ## 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.hr/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack](https://www.desertcart.hr/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-25*