Borla 140577 ATAK Cat-Back Exhaust for 2014-18 Chevy GMC Silverado/Sierra 1500

Vehicle Fitment

• 2014-2018 Chevrolet Silverado 1500 (Extended Cab, Crew Cab; 6.2L V8, AT/MT, 2WD/4WD)
• 2014-2018 GMC Sierra 1500 (Extended Cab, Crew Cab; 6.2L V8, AT/MT, 2WD/4WD)

Features

• Premium ATAK® acoustically tuned performance sound profile
• High-flow cat-back exhaust design for increased exhaust velocity
• Mandrel-bent tubing for smooth airflow and reduced backpressure
• Dual side exit configuration with aggressive styling
• Dual 4" round rolled angle-cut stainless steel tips
• Precision CNC-manufactured for an accurate, bolt-on fit
• Durable T-304 austenitic stainless steel construction resists corrosion
• Comes with Million-Mile Warranty for long-term coverage

Specifications

• Part Number: 140577
• Exhaust Type: Cat-Back System
• Sound Level: ATAK (most aggressive Borla street-legal sound profile)
• Inlet Diameter: 3.5"
• Outlet/Tailpipe Diameter: Dual 2.25"
• Tip Diameter: Dual 4"
• Exit Position: Truck side exit
• Material: T-304 stainless steel; welded construction

Included Components

• 1x Cat-Back Exhaust Assembly (complete tubing and muffler)
• 2x 4" polished stainless steel exhaust tips
• Installation hardware (clamps and brackets as required)
• Installation instructions

Product Description

The Borla 140577 ATAK Cat-Back Exhaust System is a vehicle-specific performance exhaust designed for the 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 equipped with the 6.2L V8 engine. Engineered with Borla's patented ATAK® acoustically tuned technology, this cat-back exhaust delivers an aggressive exhaust note that enhances the driving experience without drone inside the cab. Constructed from premium T-304 stainless steel with precision mandrel bends, the system improves exhaust flow, adds horsepower potential, and delivers a sporty growl that complements the truck's character.

Installation is straightforward with a direct bolt-on fit using factory mounting points and included hardware. The dual 4" rolled angle-cut tips and truck side exit provide an aggressive stance and finish that stand out on the road. Suitable for both 2WD and 4WD models with automatic or manual transmissions, this system also comes backed by Borla's Million-Mile Warranty for peace of mind. Fitment is confirmed through 2018; later model coverage is not officially listed.