C8 Corvette Stingray CORSA Valved Cat-Back Exhaust (NPP) — 21100 / 21100BLK / 21100CF (2020–2026)
If your 2020–2026 C8 Corvette Stingray is equipped with the factory NPP valved exhaust and you want a sharper, more aggressive tone without giving up drive-mode sound control, the CORSA 21100 series is the right choice. This is a muffled, valved cat-back that keeps the factory valve function so your Corvette can stay quieter when you want and get louder when you don’t.
What This CORSA System Is
The CORSA 21100 / 21100BLK / 21100CF is a valved, muffled cat-back exhaust engineered specifically for the C8 Stingray platform. It is designed to work with factory NPP valve control and retain the factory AFM (2020–2021) / DFM (2022–2026) valve behavior, while delivering CORSA’s signature tone and improved exhaust flow.
Why C8 Owners Choose CORSA
- Keeps functional NPP sound modes: retains factory valved control tied to your drive modes.
- Keeps AFM/DFM valve behavior: maintains factory cylinder-deactivation exhaust strategy.
- No-drone cruising: CORSA’s RSC® design targets interior resonance for comfortable highway driving.
- Premium construction: 3.0" T304 stainless steel for long-term durability and corrosion resistance.
- Tip options: polished (21100), black (21100BLK), or carbon fiber (21100CF) 4.5" Pro-Series tips.
What to Expect After Installation
- More aggressive exhaust note under throttle
- Refined cruising comfort with reduced drone
- Drive-mode sound control remains functional (NPP)
- Stronger overall character without sacrificing daily drivability
Technical Specifications
- CORSA Part Numbers: 21100 (Polished Tips) / 21100BLK (Black Tips) / 21100CF (Carbon Fiber Tips)
- Vehicle: C8 Corvette Stingray
- Model Years: 2020–2026
- System Type: Cat-Back Exhaust (Muffled + Valved)
- Pipe Diameter: 3.0-inch
- Tip Size: 4.5-inch Pro-Series tips
- NPP Valves: Retained (functional sound-mode control)
- AFM/DFM: Retained (AFM 2020–2021 / DFM 2022–2026)
- Installation: Direct bolt-on using included hardware
Installation Overview
- Install Type: Direct bolt-on cat-back (no cutting or welding required)
- Tools: Basic hand tools recommended
- Recommendation: Professional installation recommended
- Important Note: Valves should be re-calibrated according to GM Document ID 5406413
Corvette Compatibility
- Fits: C8 Corvette Stingray (2020–2026)
- Body Styles: Coupe and HTC Convertible
- Factory Exhaust Requirement: Vehicles equipped with NPP
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