The Borla S-Type cat-back exhaust system is built for 2019-2023 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with the 6.2L V8 and the factory split rear exit. It does not fit ZR2 or AT4X models. The system delivers the classic S-Type sound level and exits through black chrome T-304 stainless steel tips. Borla recommends cleaning the black chrome tips with hot water and a microfiber cloth rather than stainless polish. The small muffler behind the primary muffler can be replaced with Polyphonic Harmonizer 60680 to reach the louder ATAK sound level, and an optional True Dual cat-back system is also available. Add adapter 60706 for crew cab models with the standard bed and 157 inch wheelbase. Borla cat-back systems use patented straight-through, multi-core technology to free hidden horsepower while adding exhaust velocity, driving excitement, and fuel economy, backed by the distinctive Borla Sound of Power. Each system is built from premium T-304 stainless steel with ultra-smooth mandrel bends and CNC-precise construction for an accurate fit. Because it mounts behind the factory catalytic converters, this cat-back system is 50-state emissions legal. Borla exhaust is handmade in the USA and backed by a Million-Mile Warranty.
Specifications:
- System type: Cat-back exhaust system
- Sound level: S-Type (classic performance tone; upgradeable to ATAK with Harmonizer 60680)
- Material: T-304 stainless steel
- Tips: Black chrome T-304 stainless steel
- Fitment note: Factory split rear exit only, does not fit ZR2 or AT4X; add adapter 60706 for 157 inch wheelbase crew cab standard bed
- Emissions: 50-state emissions legal
- Made in the USA
- Part number: 140774BC
Vehicle Applications:
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2023 GMC Sierra 1500
FAQ
What trucks does the Borla 140774BC fit?
It fits 2019-2023 Chevrolet Silverado 1500 and GMC Sierra 1500 models with the 6.2L V8 and the factory split rear exit. It does not fit ZR2 or AT4X models.
What tips does it use?
It exits through black chrome T-304 stainless steel tips. Clean them with hot water and a microfiber cloth rather than stainless polish.
Can the sound be made louder?
Yes. Replacing the small muffler behind the primary muffler with Polyphonic Harmonizer 60680 raises the system to the louder ATAK sound level.
Is the Borla 140774BC cat-back street legal?
Yes. It installs behind the factory catalytic converters and is 50-state emissions legal. Borla exhaust is handmade in the USA and backed by the Million-Mile Warranty.

