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Aggressive Style Meets Valved Sound Control
The CORSA 21789CFBLK Valved Axle-Back exhaust brings a track ready look to the 2016-2024 Chevrolet Camaro SS and ZL1 with black carbon fiber quad tips and a 3.0 in stainless steel axle-back system. Built in valve technology lets the driver switch between a quiet cruising tone and a full aggressive V8 exhaust note on demand.
Key Features
- 3.0 in 304 stainless steel axle-back construction, part number 21789CFBLK
- Quad 4.5 in black carbon fiber tips
- Valved sound control for adjustable exhaust tone
- No-drone RSC Technology for refined highway cruising
- Direct bolt-on fitment with factory hangers
- Limited lifetime warranty, engineered and built in the USA
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2016-2024 | Chevrolet | Camaro | SS |
| 2017-2024 | Chevrolet | Camaro | ZL1 |
Specifications
| Detail | Value |
|---|---|
| Part Number | 21789CFBLK |
| Pipe Diameter | 3.0 in |
| Tip Size | Quad 4.5 in |
| Tip Finish | Black Carbon Fiber |
| Sound Level | Valved |
| Material | 304 Stainless Steel with Carbon Fiber Tips |
| UPC | Not published by manufacturer |
What's Included
- CORSA 21789CFBLK axle-back exhaust system
- Quad 4.5 in black carbon fiber tips
- Mounting clamps and hardware
- Installation instructions
About CORSA Performance
CORSA Performance designs and manufactures performance exhaust systems, cold air intakes, and carbon fiber accessories in Berea, Ohio. Every CORSA valved axle-back exhaust uses patented No Drone Reflective Sound Cancellation Technology to deliver an aggressive tone under acceleration while staying quiet at highway cruise, all backed by a limited lifetime warranty.
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Frequently Asked Questions
What is the 21789CFBLK?The CORSA 21789CFBLK is a 3.0 in valved axle-back exhaust system for the 2016-2024 Chevrolet Camaro SS and 2017-2024 ZL1, finished with quad 4.5 in black carbon fiber tips.
Does the 21789CFBLK have adjustable sound levels?Yes, the built in valve system allows the driver to switch between a quiet cruising mode and a more aggressive exhaust tone.
What are the tips made from on the 21789CFBLK?The quad 4.5 in tips feature a black carbon fiber shroud over a dual walled stainless steel inner cone.
Does the 21789CFBLK fit both the SS and ZL1?Yes, this system fits the 2016-2024 Camaro SS and 2017-2024 Camaro ZL1.
Is professional installation required for the 21789CFBLK?No welding or cutting is required. Installation is bolt-on using factory hangers and supplied clamps.
Does the 21789CFBLK come with a warranty?Yes, CORSA backs this system with a limited lifetime warranty against manufacturing defects.
Will the 21789CFBLK work with the factory active exhaust valves?Yes, this system is designed to integrate with the Camaro's valve control system where equipped.
Is the 21789CFBLK made in the USA?Yes, CORSA exhaust systems are engineered and manufactured in the United States.
Installation Instructions
- Raise and safely support the vehicle, then allow the exhaust to cool completely.
- Remove the factory axle-back exhaust section at the mid-pipe connection.
- Position the CORSA 21789CFBLK axle-back system and align with factory hangers.
- Install the supplied clamps at each connection point without fully tightening.
- Reconnect the factory valve actuator wiring if equipped.
- Adjust tip alignment so all four tips are centered and evenly spaced.
- Torque all clamps to specification starting from the front of the system.
- Start the engine, verify valve operation, and check for leaks after a road test.
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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