Instruction Sheets for Part Number BOR-140775
Borla ATAK Cat-Back Systems for 2019-2023 SIERRA 1500, SILVERADO 1500 - 140775
Part Number: BOR-140775
Exhaust System, ATAK, Cat-back, Stainless, Natural, Split Rear Exit, Chevy, GMC, 6.2L, Kit
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Estimated Ship Date: Nov 10, 2026 Would you rather pick it up?
Borla Touring Exhaust Systems for 2019-2023 SIERRA 1500, SILVERADO 1500 - 140771
Estimated Ship Date: Nov 23, 2026
Overview
Borla ATAK Cat-Back Systems
Borla 140775 ATAK Cat-Back exhaust system features Borla’s aggressive ATAK muffler and Polyphonic Harmonizer Technology which 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.
Each system is CNC-machined from premium T-304 stainless steel with ultra-smooth mandrel bends to ensure maximum flow and power, an accurate fit, and the best in performance and durability. Best of all, Borla stands behind every system--just what you’d expect from the world’s most experienced (and most winning) exhaust brand.
Notes:
* Except ZR2 and AT4X models
* Factory split rear exit vehicles ONLY
* Tips NOT included; use factory tips
* Add Adapter 60706 for Crew Cab with standard bed (6 ft. 7 in.) 157 in. wheelbase vehicles.
* Replace the Polyphonic Harmonizer behind the muffler in the ATAK system with muffler 60679 to attain the quieter "S-Type" sound level
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