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Quad Tip Sound for the Track Focused Dark Horse
The CORSA 21265BLK Xtreme valved cat-back exhaust is purpose built for the 2024 Ford Mustang Dark Horse 5.0L V8 Fastback with factory Active Exhaust. A 3.0 inch mandrel bent stainless system routes to quad 4.5 inch black PVD Pro-Series tips, adding up to 8 dB over the factory system with a Xtreme-Touring Active sound profile.
Key Features
- 3.0 inch mandrel bent stainless steel cat-back system
- Quad 4.5 inch black PVD Pro-Series tips
- Adds up to 8 dB of exhaust tone over the factory Dark Horse system
- Works with the factory Active Exhaust valve control system
- Xtreme-Touring Active sound profile switches between Quiet and Xtreme modes
- Patented Reflective Sound Cancellation (RSC) technology for drone free cruising
- 21265BLK direct-fit design retains factory valve wiring and hangers
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2024 | Ford | Mustang | Dark Horse 5.0L V8 Fastback, Active Exhaust |
Specifications
| Detail | Value |
|---|---|
| Part Number | 21265BLK |
| Pipe Diameter | 3.0 in |
| Tip Size | 4.5 in Quad |
| Tip Finish | Black PVD |
| Sound Profile | Xtreme-Touring Active |
| Sound Increase | +8 dB over stock |
| UPC | Not published by manufacturer |
What's Included
- 3.0 in valved cat-back exhaust system
- Quad 4.5 in black PVD Pro-Series tips
- Mandrel bent stainless tubing sections
- Factory valve control retention hardware
- Installation instructions
About CORSA Performance
CORSA Performance builds exhaust systems in Berea, Ohio with a focus on active valve technology tuned for track focused platforms. The 21265BLK brings a quad tip design and Active Exhaust compatibility to the Mustang Dark Horse.
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Frequently Asked Questions
What is the 21265BLK?The CORSA 21265BLK is a 3.0 inch valved cat-back exhaust system with quad 4.5 inch black PVD Pro-Series tips for the 2024 Ford Mustang Dark Horse 5.0L V8 Fastback with Active Exhaust.
Does the 21265BLK fit the standard Mustang GT?No, the 21265BLK is engineered specifically for the Dark Horse trim; separate part numbers cover the standard GT.
How much louder is the 21265BLK than stock?The 21265BLK adds up to 8 decibels over the factory Dark Horse exhaust system.
Does the 21265BLK work with Active Exhaust?Yes, the 21265BLK is designed to retain and work with the factory Active Exhaust valve control system.
What material is the 21265BLK made from?The 21265BLK is constructed from stainless steel for long term corrosion resistance.
Will the black PVD tip finish fade over time?The black PVD coating is designed to resist fading and discoloration from heat over the life of the part.
Does installation require welding?No, the 21265BLK is a bolt-on cat-back system that uses factory hangers and valve wiring.
Is the 21265BLK covered by a warranty?Yes, CORSA backs the 21265BLK with a limited lifetime warranty against manufacturing defects.
Installation Instructions
- Raise and safely support the vehicle on a lift or jack stands.
- Remove the factory cat-back exhaust system, noting the Active Exhaust valve harness routing.
- Test fit the new 21265BLK mandrel bent piping sections from front to rear.
- Install new hangers and clamps at each factory mounting point.
- Reconnect the Active Exhaust valve harness to the factory connector.
- Attach the quad 4.5 in black PVD tips and align for even spacing.
- Lower the vehicle and start the engine to verify valve operation and check for leaks.
WARNING: This product can expose you to chemicals including nickel compounds, which are known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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