The Borla 140841BC ATAK cat-back exhaust system is engineered for the 2020-2025 Chevrolet Corvette C8 Stingray with the 6.2L V8. This 3" inlet system includes the AFM (2020-2021)/DFM (2022-2025) valves but does not include NPP dual-mode exhaust valves, making it the right choice for Corvettes without the factory NPP option. The aggressive ATAK sound level delivers a loud, exciting tone with no interior drone. It features Borla's Polyphonic Harmonizer and patented SwitchFire technology, which blends the combustion pulses from both banks for improved performance and a custom sound. Strategically placed heat shielding is included to protect the vehicle. It comes with quad 4" round black chrome on T-304 stainless steel tips and is also offered with bright chrome or carbon fiber tips. Borla stainless steel polish is not recommended on the black chrome tips, which should be cleaned with hot water and a microfiber cloth. The system ships in two boxes. After installation, the AFM/DFM valve controllers should be re-calibrated per GM Document ID 5406413; Borla recommends having a Chevrolet dealer perform the recalibration. Built from T-304 stainless steel and handmade in the USA, it is backed by the Borla Million-Mile Warranty. As a cat-back system it mounts behind the factory catalytic converters and is 50-state emissions legal.
Specifications:
- System type: 3" inlet cat-back exhaust system
- Sound level: ATAK
- Technology: Polyphonic Harmonizer and patented SwitchFire
- Valves: includes AFM (2020-2021)/DFM (2022-2025); does not include NPP valves
- Includes heat shielding
- Material: T-304 stainless steel
- Tips: quad 4" round black chrome on T-304 stainless steel
- Install note: valve controller recalibration required (GM Document ID 5406413); ships in two boxes
- Warranty: Million-Mile Warranty
- Emissions: 50-state emissions legal
- Made in the USA
- Part number: 140841BC
Vehicle Applications:
- 2020 Chevrolet Corvette Stingray
- 2021 Chevrolet Corvette Stingray
- 2022 Chevrolet Corvette Stingray
- 2023 Chevrolet Corvette Stingray
- 2024 Chevrolet Corvette Stingray
- 2025 Chevrolet Corvette Stingray
FAQ
What does the Borla 140841BC fit?
It fits the 2020-2025 Chevrolet Corvette C8 Stingray with the 6.2L V8 that is not equipped with the factory NPP dual-mode exhaust option.
Is this Borla cat-back 50-state emissions legal?
Yes. As a cat-back it installs behind the factory catalytic converters and is 50-state emissions legal.
Does it work on a Corvette with NPP?
No. The 140841BC does not include NPP valves and is intended for Corvettes without the factory NPP option. Borla offers NPP-equipped systems for cars that have NPP.
How should the black chrome tips be cleaned?
Avoid Borla stainless steel polish on the black chrome tips. Clean them with hot water and a microfiber cloth to protect the finish.
Where is it made and what warranty does it carry?
Borla exhaust systems are handmade in the USA from T-304 stainless steel and are backed by the Borla Million-Mile Warranty.

