Installation Time
(approx) 2 Hours
Difficulty Level:
Simple installation for anyone.
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Corsa Performance Sport Valved Axle-Back Exhaust with Pro-Series Polished Tips (24-26 Mustang GT Fastback w/ Active Exhaust)Find parts that fit my vehicle
Item 439976
Our Price
$2,109.99 kit
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$105.50 Available in AM Cash Rewards.
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- 3.0 Inch Axle-Back Dual Rear Exit Exhaust System
- Sport Valved Sound Level Featuring Active Exhaust Technology
- Premium 304 Stainless Steel Construction
- Corsa-Designed Valves With Custom-Tuned Mufflers
- Seamlessly Integrates With Factory Active Exhaust Module Only
- Roaring Exhaust Notes At Valve Open With Quiet, Drone-Free Cabin At Cruise
- Straight-Through Muffler Increasing Flow By Nearly 20 Percent
- Dual 4.0 Inch Polished Pro-Series Slash Cut Tips
- Increases Exhaust Flow By Approximately 17 Percent
- Reduces Weight By About 9 Pounds Compared To Stock
- Provides Approximately 5 Decibels Louder Sound Than OEM
- Utilizes No DRONE RSC® Technology For Minimal Cabin Resonance
- Made In The USA, Manufactured In Berea, Ohio
- Limited Lifetime Warranty On Exhaust Components, 5 Year On Valves
- Fits 2024 Mustang GT Fastback w/ Active Exhaust
| Brand | Corsa Performance |
| Exhaust System Type | Axle-Back System |
| Exhaust System Material | Stainless Steel |
| Exhaust System Tip Finish | Chrome, Polished |
| Exhaust System Tubing Diameter | 3.00 Inch |
| Exhaust Loudness | Moderate |
Description
Premium Active Exhaust System. The Corsa Performance Sport Valved Axle-Back Exhaust with Pro-Series Polished Tips delivers enhanced performance and customizable sound for the 7th Generation Mustang GT. Designed to integrate seamlessly with the OEM active valve functionality, it allows drivers to command an aggressive exhaust note on demand while maintaining a refined and drone-free cabin during cruising.
Construction and Appearance. Crafted from 304 stainless steel for durability and corrosion resistance, this axle-back system features a straight-through muffler design for increased flow. It includes dual 4.0 inch polished Pro-Series slash cut tips that provide a striking visual upgrade, combining both style and function for the Mustang GT.
Installation. Installation is straightforward using the factory active exhaust module with no drilling required, ensuring an OEM-level fitment and finish. The system is designed as a direct bolt-on replacement for a hassle-free upgrade.
Warranty. The exhaust system is backed by a limited lifetime warranty on the components and a 5-year warranty on the valves, ensuring long-term reliability and customer confidence.
Application. This axle-back exhaust is engineered specifically for the 2024 Mustang GT Fastback equipped with the factory Active Exhaust system. It requires the OEM active exhaust module to function properly.
Corsa Performance 21261
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Driver Active Muffler Assembly (20MU2154)
- (1) Passenger Active Muffler Assembly (20MU2155)
- (2) Outer 4.0” Slash Cut Tip Assembly (20MU3018)
- (1) Passenger 4.0” Slash Cut Valved Tip Assembly (20MU3031)
- (1) Driver 4.0” Slash Cut Valved Tip Assembly (20MU3032)
- (1) Passenger 4.0” Straight Cut Valved Tip Assembly (20MU3033)
- (1) Driver 4.0” Straight Cut Valved Tip Assembly (20MU3034)
- (2) Outer 4.0” Straight Cut Tip Assembly (20MU3035)
- (2) Axle Pipe Inlet To Stock Adapter (20MU4074)
- (1) Driver Axle Pipe Assembly (20MU4250)
- (1) Passenger Axle Pipe Assembly (20MU4251)
- (1) Hardware Kit (20MU7087)
Tech Guides:
- What Are the Best Mustang Exhaust Systems for Sound and Performance?
- Which Ford Mustang Axle-Back Exhaust Fits Your Sound Profile?
- What You Need To Upgrade Your Mustang Exhaust System
- What are the Benefits of Aftermarket Exhaust Systems
- Cat-Back vs Axle-Back Exhaust
- Does Upgrading an Exhaust Increase Horsepower?
- Best Mustang Cat-Back Exhaust Systems: Borla vs. Corsa vs. Magnaflow vs. Flowmaster Compared
- What Is Active Exhaust? Benefits, Modes & Upgrade Guide
- How to Improve Your Car's Exhaust Sound
- What is the Best Metal for Aftermarket Exhaust Systems
- Corsa Extreme vs. Borla Atak for Mustang
- Do Exhaust Systems Affect Fuel Efficiency?
- The Best Exhaust Systems for Maximum Horsepower Gains
- Top 5 Loudest Exhaust Systems for Your Mustang
- What are the Performance Benefits of Upgrading to a Cat-Back Exhaust
- 2024 Mustang Exhaust Guide
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Reviews of Corsa Performance Exhaust Products (500+)
Questions & Answers
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Will It Fit My Mustang
- GT - 24, 25, 26
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