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CORSA 14777BLK Xtreme Valve-Back 2015-2019 C7 Z06 NPP Manual Black
CORSA 14777BLK Xtreme Valve-Back 2015-2019 C7 Z06 NPP Manual Black
CORSA 14777BLK Xtreme Valve-Back 2015-2019 C7 Z06 NPP Manual Black
CORSA 14777BLK Xtreme Valve-Back 2015-2019 C7 Z06 NPP Manual Black
CORSA 14777BLK Xtreme Valve-Back 2015-2019 C7 Z06 NPP Manual Black
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CORSA 14777BLK Xtreme Valve-Back Exhaust for 2015-2019 Corvette C7 Z06 Grand Sport ZR1 Manual with Factory NPP - Black Tips

COR14777BLK
847466020728
Axle Back
16 Units In Stock - Ships Next Business Day
$ 3,868.99 $ 3,549.99
$ 3,549.99

Blacked-Out Xtreme NPP Performance for the C7 Z06, Grand Sport, and ZR1

The CORSA 14777BLK is the matte black tip variant of the Xtreme NPP valve-back exhaust built for the 2015-2019 Chevrolet Corvette C7 Z06, Grand Sport, and ZR1 with manual transmissions equipped with the factory NPP active exhaust valve. It delivers the same RSC-engineered Xtreme-open and Sport-closed valve performance as the polished 14777, exiting through quad 4.5-inch matte black PVD Pro-Series tips. The 14777BLK is CORSA's most aggressive Z06 NPP exhaust option in a stealth finish.

Key Features

  • CORSA RSC technology at Xtreme level engineered around the factory NPP active valve
  • 2.75-inch mandrel-bent T304 stainless steel construction
  • Quad 4.5-inch matte black PVD Pro-Series exhaust tips
  • Xtreme open-mode sound plus refined closed-mode character
  • Fits 2015-2019 C7 Z06, 2017-2019 Grand Sport, and 2019 ZR1 manual with factory NPP
  • 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 14777BLK
UPC 847466012907
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 Manual with factory NPP valve
Warranty Limited Lifetime

What's Included

  • 1x CORSA 14777BLK Xtreme valve-back muffler assembly
  • Quad 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. The 14777BLK delivers the same Z06 NPP-integrated Xtreme performance as the polished 14777 with a blacked-out finish suited to blacked-out exterior packages and dark wheel setups. Every system is assembled in the USA from T304 stainless steel with a limited lifetime warranty.

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Frequently Asked Questions

What is the CORSA 14777BLK?

The CORSA 14777BLK is a 2.75-inch Xtreme valve-back exhaust for the 2015-2019 C7 Corvette Z06, Grand Sport, and ZR1 with manual transmission and factory NPP valve, delivering maximum Xtreme sound in open NPP mode and refined character in closed mode through quad matte black PVD 4.5-inch tips.

How does the 14777BLK differ from the 14777?

Both are the same Xtreme NPP valve-back with identical fitment and sound character for the Z06 platform. The 14777 uses polished stainless quad tips; the 14777BLK uses matte black PVD quad tips.

Does the 14777BLK work with the factory NPP driving modes?

Yes. Sport and Track modes open the NPP valve for full Xtreme output; Tour mode closes it for quieter operation. RSC technology keeps the system drone-free in both states.

Is the 14777BLK drone-free?

Yes. RSC technology eliminates highway drone resonance in both NPP open and closed valve states.

Does this fit the Z06 without the factory NPP valve?

No. The CORSA 14777BLK requires the factory NPP valve. Z06 owners without NPP should look at the 14766BLK or 14768 axle-backs.

Is installation a bolt-on process?

Yes. The CORSA 14777BLK uses factory mounting points and the NPP valve outlet. No cutting or welding required.

Is a tune required?

No. The 14777BLK retains factory catalytic converters and does not affect engine management.

What warranty does the 14777BLK carry?

CORSA provides a limited lifetime warranty on the 14777BLK against defects in materials and workmanship when purchased from an authorized dealer.

Installation Instructions

  1. Safely raise and support the Corvette on rated jack stands or a lift
  2. Allow the factory exhaust to cool completely
  3. Locate the factory NPP valve and identify the valve-back section
  4. Disconnect the factory muffler assembly at the NPP valve outlet
  5. Test-fit CORSA 14777BLK before tightening any hardware
  6. Attach to factory hangers and NPP valve outlet with all supplied hardware
  7. Torque all connections to specification and verify quad tip alignment
  8. Start engine, cycle NPP modes, 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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