Borla 20 22 Chevrolet GMC Silverado Sierra 6.6L T 304 SS Cat Back S Borla Exhaust 140718BC ATAK Cat Back Exhaust System for 2014 2018 Best Exhaust Borla Silverado Sierra 1500 6.2L 2019 2023 Cat Back Borla 140784 ATAK Catback Exhaust for 2019 2023 Silverado Sierra 1500 6 Borla 19 For Chevrolet Silverado GMC Sierra 1500 6.2L SS ATAK Catback E Borla ATAK Cat Back Exhaust System for 22 24 Silverado ZR2 Sierra AT4X. Factory Split Rear Exit Vehicles ONLY. Tips NOT included. Use factory tips. Add adapter 60706 for crew cab standard bed (6' 7") 157" wheelbase vehicles. System features BORLA?'s 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 to the BORLA? mufflers. The mufflers then enhance this sound to the character and volume appropriate for our Touring, S Type and ATAK? systems. Replace the Polyphonic Harmonizer behind the muffler in the ATAK? system with muffler 60679 to attain the "S Type" sound level (quieter than ATAK?). BORLA? Cat Back? and Axle Back exhaust systems feature patented straight through and multi core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA? Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T 304 stainless steel, superior to T 400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA? stands behind every system with a Million Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. This Part Fits: Year Make Model Submodel 2019 2021 Chevrolet Silverado 1500 Custom 2019 2022 Chevrolet Silverado 1500 High Country 2019 2022 Chevrolet Silverado 1500 LT 2019 2022 Chevrolet Silverado 1500 LTZ 2019 2021 Chevrolet Silverado 1500 SSV 2019 2022 Chevrolet Silverado 1500 WT 2019 2021 GMC Sierra 1500 Base 2019 2022 GMC Sierra 1500 Denali 2022 GMC Sierra 1500 Pro 2019 2022 GMC Sierra 1500 SLE 2019 2022 GMC Sierra 1500 SLT