Borla ATAK Cat-Back Exhaust System with 3.5-Inch Black Chrome Tips (140776BC) - 2019-2023 Silverado & Sierra 1500 6.2L V8
Wake up the high-performance spirit of your truck with the high-impact Borla ATAK Cat-Back Exhaust System. Custom-engineered for 2019 to 2023 Chevrolet Silverado and GMC Sierra 1500 models, this premium full-length exhaust upgrade introduces Borla's legendary acoustic profile: the aggressive ATAK sound level. Formulated explicitly for driving enthusiasts and performance purists who crave the absolute loudest, most track-inspired exhaust note under acceleration, this system is calibrated to give the high-output 6.2L V8 engine a bold, crisp, and high-impact growl. This configuration delivers a commanding exterior acoustic presence while relying on advanced straight-through internals backed by Borla's official No-Drone Guarantee to keep the cabin completely comfortable and drone-free during highway cruising, daily driving, or heavy towing.
The internal engineering of the Borla 140776BC targets key factory flow restrictions by incorporating an upgraded high-efficiency performance layout featuring a massive 3.5-inch inlet diameter that transitions smoothly into dual 2.75-inch mandrel-bent tailpipes. This performance architecture utilizes ultra-smooth mandrel bends and patented multi-core internal geometry that maximizes exhaust velocity and optimizes scavenging to unlock hidden horsepower, sharper throttle response, and enhanced fuel economy across the entire powerband. Built completely from premium-grade, aircraft-quality T-304 austenitic stainless steel, this highly durable cat-back assembly defends permanently against structural degradation, intense under-car heat cycling, and severe corrosion. The spent exhaust gases exit through a sleek dual split rear exit layout finished with massive dual 3.5-inch round, rolled edge angle-cut stealth black chrome premium coated T-304 stainless steel tips on each tailpipe. Precision CNC-manufactured for an accurate line-to-line bolt-on fitment, this system utilizes all factory mounting positions and is backed by Borla’s legendary lifetime Million-Mile Warranty.
Advanced Polyphonic Sound Engineering: This system features state-of-the-art Polyphonic Harmonizer Technology. This specialized internal layout uses patented units containing pipes of varying diameters and lengths to orchestrate multiple raw exhaust notes. They harmonize together to deliver a clean, rich, and full-bodied race sound without sacrificing cabin comfort or clarity.
Modular Sound Customization: Designed with flexibility in mind, this aggressive ATAK system can easily be toned down if your volume needs change. By swapping out the Polyphonic Harmonizer located behind the main muffler with the optional Borla 60679 replacement muffler unit (sold separately), you can instantly convert the sound profile down to the more moderate S-Type volume level.
Bumper & Valance Tip Integration: This system is engineered specifically for trucks equipped with factory integrated bumper exhaust outlets, but it REQUIRES the removal of the original factory valance tips. The premium 3.5-inch black chrome tips replace the restrictive stock inserts entirely, filling out the bumper cutouts for a much more aggressive and high-end customized look.
Cab, Bed & Wheelbase Configuration Notes: This premium performance exhaust system is precision-tailored out of the box to accommodate specific 147.4-inch wheelbase arrangements on the modern GM 1500 platform:
- Extended Cab / Double Cab models paired with a 6-foot 7-inch Standard Bed
- Crew Cab models paired with a 5-foot 9-inch Short Bed
Features
- Aggressive ATAK Acoustic Profile: Formulated to deliver Borla's loudest, most thunderous V8 race roar under load with a highly controlled, drone-free cabin experience
- Polyphonic Harmonizer Tech: Patented internal pipes of different dimensions harmonize raw engine sound for a crisp, high-fidelity exhaust note
- High-Flow Heavy Duty Pipes: Features a premium 3.5-inch inlet to dual 2.75-inch piping architecture to eliminate restrictive bottlenecks for the 6.2L powerplant
- Patented Multi-Core Tech: High-efficiency straight-through internal geometry completely removes restrictive factory flow boundaries
- Modular Sound Capability: Allows you to drop in the optional 60679 replacement muffler anytime to tone down the volume from ATAK to S-Type specifications
- Borla No-Drone Guarantee: Advanced acoustic engineering ensures an upgraded exterior note with absolute zero cab resonance or highway humming
- Constructed completely from premium-grade T-304 austenitic stainless steel for permanent structural integrity and ultimate rust resistance
- Premium Stealth Styling: Finished with dual 3.5-inch round, rolled edge angle-cut black chrome premium coated T-304 stainless steel tips on each tailpipe
- Custom Bumper Integration: Complete tip replacement upgrade fills out your factory bumper cutouts after removing the original valance pieces
- True Bolt-On Architecture: Precision computer-numerical control (CNC) manufacturing ensures an accurate, line-to-line fitment
- Backed by Borla's unmatched, industry-leading written Million-Mile Warranty
Detailed Vehicle Fitment Breakdown
Compatible Model Years & Generation Boundaries:
This performance exhaust system is compatible with the following truck configurations under the specific chassis, transmission, engine, and rear bumper parameters detailed below:
- 2019 Chevrolet Silverado / GMC Sierra 1500 (6.2L V8) - New Body Style Only
- 2020 Chevrolet Silverado / GMC Sierra 1500 (6.2L V8)
- 2021 Chevrolet Silverado / GMC Sierra 1500 (6.2L V8)
- 2022 Chevrolet Silverado / GMC Sierra 1500 (6.2L V8)
- 2023 Chevrolet Silverado / GMC Sierra 1500 (6.2L V8)
Engine, Drivetrain & Rear Bumper Details:
Fits the 6.2L EcoTec3 V8 truck platform listed above across these exact structural layouts:
- Engine Configuration: 6.2L Naturally Aspirated V8 Gas Engine
- Transmission Compatibility: Compatible with all automatic transmission variants
- Drivetrain Layout: Fits both 2-Wheel Drive (2WD) and 4-Wheel Drive (4WD) layouts
- Rear Bumper Style: Fits models equipped with factory Split Rear Exit bumper exhaust configurations ONLY
- Fitment Exclusions: Does NOT fit Chevrolet ZR2 or GMC Sierra AT4X models
Important Application & Tip Care Notes:
- **Black Chrome Tip Maintenance:** Do NOT use Borla Stainless Steel Polish (part number 21499) or any other abrasive metal polishes on these specialized black chrome finishes. We strictly suggest cleaning the tips using only hot water and a soft microfiber cloth to protect the premium dark coating.
- **Bumper Style Requirement:** This kit is designed strictly for trucks that came from the factory with dual exhaust tips integrated into the rear bumper and requires deleting the original bezels during installation. It does not fit models with standard side-exit exhausts or single-pipe setups.
- **157-Inch Wheelbase Note:** For Crew Cab models carrying the 6' 7" Standard Bed, you must purchase the additional Borla 60706 extension adapter pipeline to complete installation.
- **Premium Materials:** Built entirely with authentic T-304 stainless steel to deliver superior rust resistance over lower-grade T-400 series choices.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
