Borla 3" ATAK Cat-Back Exhaust System w/ 4" Quad Polished Tips, w/ AFM and NPP Valves 2020-2023 C8 Corvette w/ AFM & NPP Valves

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  • Borla C8 Corvette ATAK Cat-Back Exhaust System, 4" Quad Polished Angled Tips, w/ AFM and NPP Valves
  • Borla ATAK Cat-Back Exhaust System, 4" Quad Polished Angled Tips, w/ AFM and NPP Valves :: 2020-2021 C8 Corvette
  • Borla ATAK Cat-Back Exhaust System, 4" Quad Polished Angled Tips, w/ AFM and NPP Valves :: 2020-2021 C8 Corvette
Our Price: $3,856.99
Frequently bought together:



  • System Type: Cat-Back
  • Tip Size: 4 Inch
  • Tip Finish: Polished
  • Tip Quantity: Quad
  • System Material: T304 Stainless
  • Pipe Diameter: 3 Inch
  • NPP Valve Function: Yes
  • AFM Valve Function: Yes
  • Aggressive No Drone ATAK Sound Level
  • SwitchFire® Technology for Improved Performance
  • Polyphonic Harmonizer for Clean, Rich Sound
  • Heat Shielding to Prevent Exhaust Damage
  • Made in the USA
  • Million Mile Warranty

Developing systems for the C8 Corvette presented Borla® engineers with unique challenges, but the team was up to the challenge. Great care was taken to ensure the integrity and function of the system as well as the vehicle itself. This exhaust includes both AFM and NPP dual mode exhaust valves.

It features the ATAK® sound level, Borla's most aggressive sound. Borla's exhaust provides a more exciting driving experience without any drone. It features Borla's Polyphonic Harmonizer and SwitchFire technology. BORLA®'S Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound. Completely eliminating the turbulent center intersection of a standard X-Pipe, BORLA®'S patented SwitchFire™ design truly blends the combustion pulses from both sides of the engine for improved performance and a custom sound. Strategically placed heat shielding is included to prevent exhaust heat damage and protect your Corvette.

Pipe Diameters:
3" (76.2mm), 2" (50.8mm), 2.75" (69.85mm)
Tips: 4" (101.6mm) Dual Round Rolled Angle-Cut, Polished Short
Exit: Dual Split Rear Exit

Recalibration may be needed. After installation, the exhaust valves should be re-calibrated according to GM Document ID 5406413. Borla Performance Industries recommends taking your car to the nearest Chevrolet dealer for exhaust valve recalibration services.


Note: System includes AFM and NPP Valves. Do NOT install on vehicles without O.E. NPP Valves. 

Hear the Sound

2020-2023 C8 Corvette models are only available with an automatic transmission


Installation PDF (opens in new tab): Click HERE

Warranty Information (opens in new tab): Click HERE

Part Number: 140839

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Warranty Information

BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
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