The Borla 140577 ATAK cat-back exhaust fits the 2014-2018 Chevrolet Silverado 1500 and the 2014-2018 GMC Sierra 1500. ATAK is Borla's most aggressive sound level, and this system exits to the side through dual rolled T-304 stainless steel tips. Borla cat-back systems use patented straight-through, multi-core technology to free hidden horsepower, raise exhaust velocity and deliver the signature Borla Sound of Power. The system is built from premium T-304 austenitic stainless steel with ultra-smooth mandrel bends and CNC manufacturing for an accurate fit, and it is handmade in the USA. As a cat-back that mounts behind the factory catalytic converters, it is 50-state emissions legal and is backed by the Borla Million-Mile Warranty.
Specifications:
- System type: Cat-Back exhaust
- Sound level: ATAK (most aggressive)
- Material: T-304 stainless steel
- Construction: mandrel-bent, CNC-manufactured, fully welded
- Exit style: dual rolled side exit
- Emissions: 50-state emissions legal
- Warranty: Borla Million-Mile Warranty
- Made in the USA
- Part number: 140577
Vehicle Applications:
- 2014 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 1500
- 2016 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
FAQ
What does the Borla 140577 cat-back fit?
It fits the 2014-2018 Chevrolet Silverado 1500 and the 2014-2018 GMC Sierra 1500. See the Vehicle Applications list for every year and model.
Is the Borla 140577 exhaust 50-state legal?
Yes. It is a cat-back system that mounts behind the factory catalytic converters, so it is 50-state emissions legal.
How loud is the ATAK sound level?
ATAK is Borla's most aggressive sound level and the loudest in the lineup, built for the strongest exhaust note under throttle.
Where is the Borla 140577 exhaust made and is it warrantied?
It is handmade in the USA from T-304 stainless steel and backed by the Borla Million-Mile Warranty.

