CORSA 21111 3" Valved Cat-Back Exhaust for 23-25 Chevy Corvette C8 Z06 w/NPP

Vehicle Fitment

• 2023-2025 Chevrolet Corvette C8 Z06 (5.5 L LT6 V8; Coupe & HTC; RWD)

Fitment Notes

• Valved cat-back exhaust compatible with factory NPP dual-mode exhaust
• No tips included--reuses OEM rear bezels
• Requires GM valve re-learn procedure (GM Doc 5406413) to avoid CEL

Features

• 3.0" mandrel-bent T304 stainless steel tubing with braided flex couplers
• C8 Z06-specific RSC® no-drone mufflers tuned for exotic tone
• Serviceable cast valve assemblies integrated with factory NPP system
• Reuses OEM tips and retains full driving-mode control
• Louder under acceleration; silent at cruise
• Weight savings ~14 lb vs stock -- improves handling responsiveness
• Dyno gains: +12 hp / +13 lb-ft torque
• Made in USA; backed by limited lifetime exhaust and 5-year valve warranty

Specifications

• Part Number: 21111
• Pipe Diameter: 3.0"
• Exit Style: Dual rear center, uses factory bezels
• Material: T304 stainless steel
• Weight Reduction: ~14 lb
• Flow Increase: +2.4%
• Performance Gain: +12 hp / +13 lb-ft
• Warranty: Exhaust - lifetime; Valves - 5 years

Included Components

• 1x Complete valved cat-back exhaust assembly (no tips)
• Cast valve assemblies, braided flex adapters, hangers & hardware
• Installation guide (includes valve re-learn instructions)

Product Description

The CORSA 21111 cat-back exhaust is a direct-fit performance upgrade for 2023-2025 Corvette C8 Z06 models equipped with factory NPP dual-mode exhaust. Featuring 3" mandrel-bent stainless tubing, precision-tuned RSC® mufflers, and serviceable cast valves, this system amplifies the exotic LT6 exhaust note while maintaining chirp-free highway cruise.

Designed to integrate seamlessly with OEM NPP valves and reuses factory bezels, the 21111 system delivers a weight savings of ~14 lb and dyno-proven gains of +12 hp / +13 lb-ft. Crafted in the USA with a lifetime exhaust warranty and 5-year valve coverage, it's the ultimate bolt-on exhaust for Z06 owners seeking refined yet aggressive performance.