Corsa Xtreme Axle Back C7 Corvette Grand Sport / Z06 / ZR1

Transform the sound and driving experience of your Chevrolet C7 Corvette with the CORSA Performance Xtreme Axle-Back Exhaust System. Engineered for the C7 Z06, ZR1, and manual-transmission Grand Sport, this premium performance exhaust delivers an aggressive V8 exhaust note, improved exhaust flow, and reduced weight compared with the factory system.

The CORSA Xtreme sound profile is designed for enthusiasts seeking maximum exhaust aggression without unwanted cabin drone. Featuring CORSA's patented Reflective Sound Cancellation (RSC) Technology, the system delivers a powerful exhaust note during acceleration while minimizing low-frequency resonance during highway cruising.

Constructed with premium stainless-steel tubing, the exhaust features a high-flow 2.75-inch diameter design and four 4.5-inch polished Pro-Series exhaust tips. The double-wall, slash-cut tips provide a distinctive appearance that complements the aggressive rear styling of the C7 Corvette.

CORSA reports exhaust flow improvements of up to 23%, along with horsepower gains of up to 4 HP. The lightweight construction also reduces exhaust system weight by approximately 4 pounds compared with the factory configuration.

Unlike factory NPP-equipped exhaust systems, the CORSA Xtreme Axle-Back does not feature active exhaust valves. Installation on vehicles originally equipped with NPP eliminates the factory selectable exhaust sound modes, providing a consistently aggressive exhaust note.

For Corvette owners seeking maximum V8 sound, improved exhaust flow, and a drone-free driving experience, the CORSA Xtreme Axle-Back Exhaust delivers a premium performance upgrade backed by CORSA's limited lifetime warranty.

Fitment Notes

• Fits 2015–2019 Chevrolet Corvette C7 Z06 with 6.2L supercharged LT4 V8

• Fits 2017–2019 Chevrolet Corvette C7 Grand Sport with 6.2L LT1 V8 and manual transmission

• Fits 2019 Chevrolet Corvette C7 ZR1 with 6.2L supercharged LT5 V8

• Compatible with vehicles originally equipped with factory NPP exhaust

• Does not retain factory NPP valve operation or selectable exhaust sound modes

• CORSA states that removing factory NPP functionality does not trigger a check-engine light

• Not intended for automatic-transmission Grand Sport applications

• Not intended for C7 Stingray applications unless separately verified

• Professional installation recommended

Included

• CORSA Performance Xtreme axle-back exhaust system

• Stainless-steel muffler and exhaust tubing assemblies

• Four 4.5-inch polished Pro-Series exhaust tips

• Required installation hardware

Product Specs

• Manufacturer: CORSA Performance

• Part Number: 14766

• Product Type: Xtreme Axle-Back Exhaust System

• Vehicle Applications: C7 Corvette Z06 / ZR1 / Grand Sport Manual

• Sound Level: Xtreme

• Exhaust Tubing Diameter: 2.75 Inches

• Exhaust Configuration: Dual Rear Exit

• Exhaust Tip Quantity: 4

• Exhaust Tip Diameter: 4.5 Inches

• Exhaust Tip Finish: Polished

• Exhaust Tip Style: Pro-Series Double-Wall Slash Cut

• Muffler Technology: CORSA Reflective Sound Cancellation (RSC)

• Exhaust Flow Improvement: Up to 23%

• Horsepower Improvement: Up to 4 HP

• Weight Savings: Approximately 4 lbs

• Factory NPP Valve Retention: No

• Manufacturer Warranty: Limited Lifetime Exhaust Warranty

Product Features

• Aggressive Xtreme exhaust sound delivers CORSA's most pronounced V8 exhaust note for the C7 Corvette.

• Patented RSC Technology minimizes unwanted cabin drone while maintaining aggressive sound during acceleration.

• High-flow 2.75-inch exhaust design provides up to 23% improved exhaust flow compared with the factory system.

• Quad 4.5-inch polished Pro-Series tips feature a premium double-wall, slash-cut design.

• Lightweight stainless-steel construction offers durability, corrosion resistance, and approximately 4 pounds of weight savings.

• Direct-fit axle-back installation provides a vehicle-specific exhaust upgrade backed by CORSA's limited lifetime warranty.