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Blacked-Out Xtreme Sound for the C7 Corvette Z06, Grand Sport, and ZR1
The CORSA 14766BLK is the matte black tip variant of the Xtreme-level axle-back exhaust built for the 2015-2019 Chevrolet Corvette C7 Z06, Grand Sport, and ZR1 with manual transmissions without the factory NPP active exhaust valve. It delivers the same RSC-tuned maximum aggressive sound as the polished 14766 but exits through twin 4.5-inch matte black PVD Pro-Series tips that complement the Z06's aggressive exterior. Built from 2.75-inch mandrel-bent T304 stainless steel throughout, the 14766BLK is CORSA's loudest axle-back option for these high-performance C7 variants.
Key Features
- CORSA RSC technology at Xtreme level for C7 Z06 and ZR1 LT4 V8 character
- 2.75-inch mandrel-bent T304 stainless steel construction
- Twin 4.5-inch matte black PVD Pro-Series exhaust tips
- Xtreme sound level: maximum aggressive output for Z06 and ZR1 performance tier
- Fits 2015-2019 Corvette C7 Z06, Grand Sport (manual, w/o NPP), and ZR1
- CORSA limited lifetime warranty
- Made in Berea, Ohio, USA
Vehicle Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2015-2019 | Chevrolet | Corvette | Z06 |
| 2017-2019 | Chevrolet | Corvette | Grand Sport |
| 2019 | Chevrolet | Corvette | ZR1 |
Specifications
| Detail | Value |
|---|---|
| MPN | 14766BLK |
| UPC | 847466012938 |
| Pipe Diameter | 2.75 inches |
| System Type | Axle-Back |
| Sound Level | Xtreme |
| Tip Style | Twin 4.5-inch Matte Black PVD Pro-Series |
| Exit | Dual Rear Exit |
| Material | T304 Stainless Steel |
| Transmission | Manual (without factory NPP valve) |
| Warranty | Limited Lifetime |
What's Included
- 1x CORSA 14766BLK Xtreme axle-back muffler assembly
- Twin 4.5-inch matte black PVD Pro-Series exhaust tips
- All hardware and clamps for bolt-on installation
About CORSA Performance
Founded in 1989 in Berea, Ohio, CORSA Performance invented Reflective Sound Cancellation technology and has engineered Corvette exhaust systems for over 30 years. Every CORSA system uses T304 aircraft-grade stainless steel with a limited lifetime warranty and is assembled in the USA.
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Frequently Asked Questions
What is the CORSA 14766BLK?The CORSA 14766BLK is a 2.75-inch Xtreme axle-back exhaust for the 2015-2019 C7 Corvette Z06, Grand Sport, and ZR1 with manual transmission and no factory NPP valve, delivering CORSA's maximum aggressive exhaust sound through twin 4.5-inch matte black PVD Pro-Series tips.
How does the 14766BLK differ from the 14766?Both are the same Xtreme axle-back for the same C7 Z06 platform. The 14766 uses polished stainless tips; the 14766BLK uses matte black PVD tips. Sound and fitment are identical.
Is the 14766BLK drone-free at highway speeds?RSC technology manages resonance at the Xtreme level. The Z06 LT4 character is inherently aggressive, and the Xtreme tuning is matched to that. Highway volume will be elevated but without the harshest drone peaks.
Does this fit the C7 Z06 with automatic transmission and NPP?The CORSA 14766BLK is designed for manual transmission Z06 without the NPP active valve. Auto or NPP-equipped Z06 owners should verify fitment with CORSA before ordering.
Does this require cutting or welding?No. The CORSA 14766BLK is a direct bolt-on axle-back replacement at factory mounting points.
Is a tune required?No. The 14766BLK retains factory catalytic converters and does not alter engine management. No tune is required.
Will the matte black tips hold up on a track-driven Z06?The matte black PVD finish on T304 stainless is heat-resistant and durable for street and occasional track use. Extreme sustained high-heat track driving may affect tip finish over time.
What warranty does the 14766BLK carry?CORSA provides a limited lifetime warranty on the 14766BLK against defects in materials and workmanship when purchased from an authorized dealer.
Installation Instructions
- Safely raise and support the Corvette on rated jack stands or a lift
- Allow the factory exhaust to cool completely
- Disconnect the factory axle-back muffler assembly
- Remove the factory muffler and tip assembly
- Test-fit CORSA 14766BLK before tightening any hardware
- Attach to factory hangers and install all supplied hardware
- Torque all connections to specification and verify tip symmetry
- Start engine and inspect all connections for leaks
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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