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For 2018-2020 Ford Mustang GT and Bullitt owners who want the full Corsa cat-back exhaust experience with a blacked-out aesthetic, the COR21042BLK delivers. The 3-inch mandrel-bent T304 stainless steel cat-back system uses Corsa's patented RSC Technology to produce the distinctive, drone-free Sport sound level that has made Corsa the preferred choice among Mustang enthusiasts. The dual rear exit is capped with 4-inch black PVD Pro-Series tips for a stealthy, race-inspired look. No tune required, no cutting, no welding. The COR21042BLK bolts directly to factory mounting points.
Key Features
- 3-inch T304 stainless steel mandrel-bent cat-back piping.
- Complete bolt-on installation with no tune required.
- Complete Sport cat-back exhaust system.
- Safely lift the Mustang on a lift or jack stands and allow the factory exhaust to cool completely.
- Hang the muffler assembly on the factory hanger locations.
- Start the engine and inspect for exhaust leaks at all connection points before driving.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2018-2020 | Ford | Mustang | GT |
| 2018-2020 | Ford | Mustang | GT Premium |
| 2020 | Ford | Mustang | Bullitt |
Specifications
| Manufacturer | CORSA Performance |
|---|---|
| Manufacturer Part Number | 21042BLK |
| Product Type | Catback |
| Fitment Type | Vehicle specific |
| Finish | Black PVD |
| Tip Size | 4.0 inch Black PVD Pro-Series |
| Pipe Diameter | 3.0 inch |
| Material | T304 Stainless Steel |
| System Type | Sport Cat-Back |
| Exit | Dual Rear Exit |
| Fitment | 2018-2020 Ford Mustang GT 5.0L V8 |
| Prop 65 | Yes |
| Warranty | Limited Lifetime |
| Made In | USA |
What's Included
- Complete Sport cat-back exhaust system
- 4-inch Black PVD Pro-Series tips (dual)
- OEM-compatible hangers and hardware
- Corsa installation instructions
About CORSA Performance
CORSA Performance develops vehicle-specific and universal intake and exhaust components with an emphasis on application-specific engineering, durable materials, controlled sound, and precise fit. Product configuration and installation requirements remain exact-part-number specific.
Related CORSA Performance Products
- Corsa 18-19 Ford Mustang V8 5.0L 3in Cat-Back Dual Rear Exit w/ 4in Polished Pro-Series Tips
- Corsa 18-19 Ford Mustang 5.0L 3in Sport Cat-Back Dual Rear Exit 4in Polished Pro-Series Tips
- Corsa 18-19 Ford Mustang 5.0L V8 3in Sport Axle-Back Dual Rear Exit w/ 4in Black PVD Pro-Series Tips
Browse the CORSA Performance collection for related exhaust, intake, and engine-bay upgrades.
Frequently Asked Questions
Will this CORSA product fit my 2018-2020 Ford Mustang?
That vehicle range is listed, but confirm the exact manufacturer part number, trim, cab or body style, factory exhaust or intake configuration, and every application note before ordering.
How should I choose the correct CORSA exhaust configuration?
Compare sound level, pipe diameter, exit location, tip finish, factory valve or active-exhaust requirements, cab and bed or body configuration, and the exact part number.
Does this CORSA exhaust require professional installation?
Vehicle-specific systems are generally bolt-on when the exact application matches. Universal components can require cutting and welding. Professional installation helps ensure alignment, clearance, sealing, and correct clamp torque.
Installation Instructions
Follow CORSA and vehicle service instructions. Support the vehicle safely, allow the exhaust to cool, verify all hangers and clearances, align the system before final tightening, check for leaks, and recheck clamp torque after the first heat cycle.
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