---
product_id: 47292657
title: "Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack"
brand: "roush"
price: "$U78669"
currency: UYU
in_stock: true
reviews_count: 4
category: "Roush"
url: https://www.desertcart.uy/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack
store_origin: UY
region: Uruguay
---

# 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:** $U78669
**Availability:** ✅ In Stock

## Summary

> 🏁 Turn your Mustang into a street legend with ROUSH power and presence!

## Quick Answers

- **What is this?** Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack by roush
- **How much does it cost?** $U78669 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/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 for durability and reduced in-cabin drone, this exhaust system enhances airflow and performance while maintaining a refined driving experience.

## 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 | #2,140,577 in Automotive ( See Top 100 in Automotive ) #82 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.uy/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack](https://www.desertcart.uy/products/47292657-performance-products-421127-axle-back-exhaust-kit-1-pack)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-19*