Corsa Sport 3.0" Cat-Back with 4.0" Polished Twin Tips (14337) - 2015-2017 Ford Mustang GT 5.0L V8
Upgrade your 2015-2017 Ford Mustang GT with the Corsa Sport 3.0" Cat-Back Exhaust System. Designed specifically for S550 Mustang GT Fastback models equipped with the 5.0L Coyote V8, the 14337 combines a complete 3.0" Cat-Back configuration, Corsa's Sport sound level, a Double X-Pipe, and quad 4.0" polished Pro-Series tips.
This configuration is especially well suited to Mustangs with more aggressive engine modifications where overall exhaust volume needs to be kept under better control. Corsa pairs its XX-Pipe part number 14327 with Touring Axle-Back part number 14336 to create the 14337 Sport Cat-Back package, delivering a stronger exhaust character without stepping up to the more aggressive Xtreme sound level.
Corsa Sport Sound Level
The Corsa 14337 features the Sport sound level, providing an aggressive performance exhaust character while remaining more controlled than the Xtreme configuration. This makes it a strong choice for Mustang owners who want a noticeable exhaust upgrade without maximizing overall volume.
Corsa specifically identifies this Sport configuration as ideal for pairing with aggressive engine modifications where additional exhaust sound from headers, cams, or other performance upgrades could otherwise make the vehicle excessively loud.
Ideal for Aggressive Engine Modifications
Modified Mustangs can become significantly louder as additional performance components are added. The 14337 is designed to help control overall exhaust volume while still providing the sound and flow benefits of a full 3.0" Cat-Back system.
This makes the Sport configuration particularly attractive for performance builds where the exhaust system needs to complement other engine modifications rather than overpower them.
Complete 3.0" Cat-Back Exhaust
The Corsa 14337 is a complete 3.0" Cat-Back exhaust system rather than an Axle-Back-only upgrade. It replaces additional factory exhaust components to provide a more comprehensive exhaust solution for the 2015-2017 Mustang GT.
The system uses a dual rear exit layout and finishes with twin tips on each side for a total of four exhaust outlets.
Includes Corsa XX-Pipe 14327
The 14337 includes Corsa XX-Pipe part number 14327 as part of the complete Cat-Back configuration. The Double X-Pipe replaces the factory resonator and works with the Touring rear section to create the Sport sound level.
By pairing the XX-Pipe with the Touring Axle-Back, Corsa creates a combination that increases exhaust character while maintaining better overall volume control than its more aggressive Xtreme package.
Includes Touring Axle-Back 14336
The rear section of the 14337 uses Corsa Touring Axle-Back part number 14336. This pairing is what gives the complete system its Sport sound level when combined with the more aggressive Double X-Pipe.
The result is a balanced package that offers the flow and sound benefits of a full Cat-Back while maintaining a more controlled overall acoustic profile.
4 LB Weight Savings
The Corsa 14337 provides a 4 lb weight savings compared with the factory exhaust components it replaces. While the primary benefits of the system are sound, fitment, and appearance, the modest weight reduction provides an additional performance-oriented advantage.
Quad 4.0" Polished Pro-Series Tips
The 14337 finishes the rear of the Mustang with twin 4.0" polished Pro-Series tips on each side, creating a quad-tip appearance. The larger outlets provide a more aggressive visual presence while maintaining the premium styling associated with Corsa's Pro-Series exhaust tips.
Each tip features dual-wall stainless steel construction and a slash-cut profile. The polished finish provides a bright, clean appearance that complements the rear styling of the Mustang.
Premium Package and Rear Valance Requirements
The Corsa 14337 is designed for 2015-2017 Mustang GT Fastback models equipped with the Premium Package. Because of the quad-tip layout, installation also requires a Roush Quad Tip rear valance or a similar rear valance modification capable of accommodating the four exhaust outlets.
These fitment requirements are important and should be confirmed before ordering.
Features
- Corsa Sport sound level
- Designed for 2015-2017 Ford Mustang GT 5.0L V8 Fastback models
- 3.0" Cat-Back exhaust system
- Dual rear exit configuration
- Twin exhaust tips at each rear exit
- Four total exhaust outlets
- 4.0" Corsa Pro-Series exhaust tips
- Polished exhaust tip finish
- Dual-wall tip construction
- Slash-cut tip design
- 4 lb weight savings compared with the factory exhaust components
- Includes Corsa XX-Pipe part number 14327
- Includes Corsa Touring Axle-Back part number 14336
- Ideal for pairing with aggressive engine modifications to help control overall exhaust volume
- Available within Corsa's Xtreme and Sport exhaust family
Fitment
- 2015 Ford Mustang GT 5.0L V8 Fastback - Premium Package
- 2016 Ford Mustang GT 5.0L V8 Fastback - Premium Package
- 2017 Ford Mustang GT 5.0L V8 Fastback - Premium Package
Fitment Notes
- Fits Premium Package models only.
- Requires a Roush Quad Tip rear valance or similar rear valance modification.
- Includes Corsa XX-Pipe part number 14327 and Touring Axle-Back part number 14336.
- Designed as a Sport sound-level configuration and is ideal for vehicles with aggressive engine modifications where additional sound control is desired.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

