C8 Corvette Corsa 21100 NPP Valved Cat-Back Exhaust with Polished Pro-Series Tips
The CORSA NPP Valved Cat-Back Exhaust, part 21100, is a 3.0 inch cat-back for the 2020-2026 C8 Corvette Stingray that left the factory with the NPP exhaust, finished with quad 4.5 inch polished Pro-Series tips. It keeps your drive-mode sound control rather than replacing it. It runs 9 decibels louder than stock at full throttle and 1 decibel quieter with the valves closed.
That second number is the one most people miss. A valved system can be louder at full throttle and still start quieter than the car did from the factory, and quieter than stock is the part you cannot get back once the valves are gone. The cast valve assemblies are built for the heat this car makes and they bolt to your stock actuator motors, so Tour, Sport and Track still change the sound the way they always did. On a cold morning the car leaves your driveway the way it always has. The noise is there when you ask for it and not before.
Product Details
- Brand: CORSA
- Part number: 21100
- System type: Cat-back, valved, mufflers retained
- Pipe diameter: 3.0 inch
- Tips: Quad, 4.5 inch, two per side
- Tip series: Pro-Series, dual wall slash cut
- Tip finish: Polished stainless
- Sound vs stock: 9 decibels louder, 1 decibel quieter, per CORSA
- Horsepower: 18 hp, per CORSA
- Torque: 16 lb-ft, per CORSA
- Factory NPP: Required. This is the version built for cars that have it
- NPP sound modes: Retained and functional
- AFM and DFM valves: Retained
- Drone control: CORSA RSC no-drone design
- Material: T304 stainless steel
- Replacement tips: CORSA 21109 quad tip kit, four in one assembly
- Installation: Direct-fit bolt-on. Nothing cut, nothing welded
- Warranty: CORSA Limited Lifetime on the exhaust, 5 years on the valves
- Also sold as: 21100BLK with Black PVD tips, 21100CF in carbon fiber
Benefits
- Keeps the quiet mode you paid GM for, and adds 9 decibels when you ask for them
- CORSA valve assemblies mate to the stock actuator motors, so the car keeps its sound modes
- RSC no-drone design targets the cabin resonance that makes a loud exhaust tiring on a long drive
- Four 4.5 inch Pro-Series tips, one pair per side, filling all four rear fascia openings
- Polished stainless matches the factory hardware already at the back of the car
- T304 stainless throughout, covered for as long as you own the Corvette
About The Polished Pro-Series Tips
The tips are Pro-Series: dual wall 304 stainless, slash cut, polished. Four of them, two per side, one pair in each rear fascia opening. The slash cut is the angled mouth you can pick out from behind the car, and polished stainless is the finish that sits closest to the factory hardware already back there. The set is also sold on its own as the CORSA 21109 quad tip kit, four tips in one assembly, and it fits CORSA exhaust systems only, not a stock exhaust. If a tip is ever curbed, or you decide later you want a darker look, the tips come off without the rest of the system coming off with them.
Important Exhaust Notes
A Check Engine Light is the thing C8 owners ask about most before they buy an exhaust, so here is the direct answer. These valve assemblies mate to your factory actuator motors, and that is what keeps the Check Engine Light off when the valves move. Some C8 installs still want the GM valve relearn afterward because of factory build tolerances, and that procedure is GM Document ID 5406413. Your installer will know it. This system is for a Stingray that came with NPP; if your car does not have it, you want a different CORSA part number and we will point you at it.
CORVETTE COMPATIBILITY
- Generation: C8 Corvette
- Model: Stingray
- Model Years: 2020 - 2026
- Engine: 6.2L LT2 V8
- Body Styles: Coupe and HTC convertible
- Required Equipment: Factory NPP exhaust
Use Overview
Use the CORSA 21100 when your Stingray has factory NPP, you want the tips to stay polished and factory-looking, and you are not willing to trade away the quiet start to get a louder car. Built for the owner who drives it on Sunday morning and still wants the neighbors asleep.
Why Buy This C8 Corvette Stingray CORSA NPP Valved Cat-Back Exhaust From Custom Corvette Accessories?
Custom Corvette Accessories is enthusiast owned and operated, so we help confirm Stingray fitment, that your car actually has the factory NPP this system requires, and which CORSA sound level you are buying before you order. This CORSA 21100 keeps your NPP sound modes, includes 4.5 inch polished Pro-Series tips, Free Shipping in the USA, and Corvette-focused support.
✅ In-stock items ship in 1–2 business days via Standard Ground.
✅ Free shipping items are available in the Continental US only.
✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.
✅ Custom or backordered items ship as soon as available.
