Borla S-Type Axle-Back Exhaust System with Polished Tips (11750) - 2005-2009 Ford Mustang GT / 2007-2009 Shelby GT500
Wake up your Mustang's inner muscle car with the Borla S-Type Axle-Back Exhaust System. Meticulously custom-engineered for the 2005 to 2009 Ford Mustang GT (4.6L V8) and the 2007 to 2009 Shelby GT500 (5.4L Supercharged V8), this setup is the ultimate choice for enthusiasts demanding an aggressive sound profile. The legendary S-Type configuration unleashes a deep, menacing roar under acceleration that commands respect at the track or on the street, yet settles into a sophisticated rumble while cruising. By delivering a significant increase in exhaust flow CFM over the restrictive factory system, this high-performance upgrade maximizes horseposer and torque, making it the perfect foundation for other aftermarket performance modifications.
This premium axle-back system features high-flow 2.5 inch mandrel-bent tubing crafted entirely from top-tier, aircraft-grade T-304 austenitic stainless steel. Engineered to outperform lower-grade T-400 series or aluminized steel alternatives, this heavy-duty material offers unmatched protection against rust, corrosion, and structural cracking. Precision computer numerical control (CNC) manufacturing ensures an accurate, hassle-free bolt-on installation that replaces only the over-the-axle pipes, mufflers, and tips while shaving weight off your vehicle. The system exits through a sporty single split rear configuration, culminating in brilliant 4 inch round, rolled, angle-cut polished stainless steel tips. Engineered with patented multi-core technology to cancel high-frequency waves, you enjoy zero interior cabin drone backed by Borla's world-renowned Million-Mile Warranty.
Features
- Aggressive S-Type sound profile delivers a deep, throatier muscle car roar under load
- Brilliant dual 4 inch round, rolled, angle-cut polished T-304 stainless steel tips give an iconic rear profile
- High-flow 2.5 inch mandrel-bent piping maximizes exhaust CFM flow and minimizes backpressure
- Constructed from premium, heavy-duty T-304 austenitic stainless steel for life-long durability
- Ultra-smooth CNC mandrel bends eliminate restriction points to boost throttle response and power
- Lighter than the restrictive factory exhaust system to improve overall vehicle efficiency
- Direct bolt-on kit replaces the over-the-axle pipes, mufflers, and tips with ease
- Protected by the industry-best Borla Million-Mile Warranty
Fitment By Year & Model
2009 Ford Mustang
- 2009 Ford Mustang GT 4.6L V8 (Coupe & Convertible, RWD, Automatic/Manual)
- 2009 Ford Mustang Shelby GT500 5.4L Supercharged V8 (Coupe & Convertible, RWD, Manual)
2008 Ford Mustang
- 2008 Ford Mustang GT 4.6L V8 (Coupe & Convertible, RWD, Automatic/Manual)
- 2008 Ford Mustang Shelby GT500 5.4L Supercharged V8 (Coupe & Convertible, RWD, Manual)
2007 Ford Mustang
- 2007 Ford Mustang GT 4.6L V8 (Coupe & Convertible, RWD, Automatic/Manual)
- 2007 Ford Mustang Shelby GT500 5.4L Supercharged V8 (Coupe & Convertible, RWD, Manual)
2006 Ford Mustang
- 2006 Ford Mustang GT 4.6L V8 (Coupe & Convertible, RWD, Automatic/Manual)
2005 Ford Mustang
- 2005 Ford Mustang GT 4.6L V8 (Coupe & Convertible, RWD, Automatic/Manual)
Important Application Notes:
- Fits **V8 Mustang GT and Shelby GT500 models ONLY**. Does not fit V6 configurations.
- Compatible with both **Coupe and Convertible** body styles layout.
- This is an **Axle-Back system** that replaces the factory rear mufflers and exhaust tips, connecting behind the rear axle.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

