The CORSA 14776BLK is the matte black tip variant of the NPP-integrated Xtreme valve-back exhaust system for the 2014-2019 Chevrolet Corvette C7 Stingray and 2017-2019 Grand Sport in automatic transmission configurations with the factory NPP active exhaust valve. Delivering the same RSC-engineered Xtreme-open and Sport-closed valve performance as the polished 14776, the 14776BLK exits through quad 4.5-inch matte black PVD Pro-Series tips for a stealthier aesthetic. Built from 2.75-inch mandrel-bent T304 stainless steel throughout.
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2014-2019 | Chevrolet | Corvette | Stingray |
| 2017-2019 | Chevrolet | Corvette | Grand Sport |
| Detail | Value |
|---|---|
| MPN | 14776BLK |
| UPC | 847466012877 |
| Pipe Diameter | 2.75 inches |
| System Type | Valve-Back (NPP) |
| Sound Level | Xtreme (open) / Sport (closed) |
| Tip Style | Quad 4.5-inch Matte Black PVD Pro-Series |
| Exit | Quad Rear Exit |
| Material | T304 Stainless Steel |
| Transmission | Automatic with factory NPP valve |
| Warranty | Limited Lifetime |
Founded in 1989 in Berea, Ohio, CORSA Performance invented Reflective Sound Cancellation technology. The 14776BLK delivers the same NPP-integrated RSC performance as the polished 14776 with a blacked-out finish that complements dark exterior packages and aftermarket wheels. Every system is assembled in the USA from T304 stainless steel with a limited lifetime warranty.
The CORSA 14776BLK is a 2.75-inch Xtreme valve-back exhaust for the 2014-2019 C7 Corvette Stingray and 2017-2019 Grand Sport automatic with factory NPP, delivering Xtreme sound in open NPP mode and refined character in closed mode through quad matte black PVD 4.5-inch tips.
How does the 14776BLK differ from the 14776?Both are the same Xtreme NPP valve-back exhaust with identical fitment and sound character. The 14776 uses polished stainless quad tips; the 14776BLK uses matte black PVD quad tips for a stealthier look.
Does the 14776BLK work with the factory NPP driving modes?Yes. The CORSA 14776BLK integrates with the factory NPP valve. Tour mode closes the valve for quieter operation; Sport and Track modes open it for full Xtreme output.
Is the 14776BLK drone-free?Yes. RSC technology eliminates highway drone resonance in both NPP valve states.
Does this fit manual transmission C7 Corvettes?No. The CORSA 14776BLK is for automatic C7 Corvettes with the factory NPP valve. Manual-trans owners should look at the 14764 valve-back or the 14766BLK axle-back.
Is installation a bolt-on process?Yes. The CORSA 14776BLK uses factory mounting points and requires no cutting or welding.
Is a tune required?No. The 14776BLK retains factory catalytic converters and does not affect engine management.
What warranty does the 14776BLK carry?CORSA provides a limited lifetime warranty on the 14776BLK against defects in materials and workmanship when purchased from an authorized dealer.
Prop 65 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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