CORSA Xtreme valve-back exhaust for the 2016-2024 Chevrolet Camaro SS and ZL1 6.2L V8, finished with black carbon fiber quad tips. Built from 304 stainless steel with CORSA's patented Reflective Sound Cancellation (RSC) technology for an aggressive note and a drone-free cabin at cruise. It plugs directly into the factory Dual-Mode NPP valve module, flows 18% better than stock, and bolts on with no welding. Made in the USA.
| Type | Valve-Back Exhaust |
| Series | Xtreme |
| Material | 304 stainless steel |
| Tips | Black carbon fiber quad tips |
| Sound | RSC drone-free at cruise |
| Flow | 18% better than stock |
| Valve | Plugs into factory Dual-Mode NPP module |
| Installation | Bolt-on - no welding |
| Part Number | 21789CFBLK |
| Warranty | Limited lifetime exhaust / 5-year valves |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2024 | Chevrolet | Camaro | SS |
| 2017-2024 | Chevrolet | Camaro | ZL1 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
