EXCEPT ZR2 & AT4X models. Factory Split Rear Exit vehicles ONLY. Tips NOT included, reuse factory tips. Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. Replace the small muffler behind the primary muffler in the BORLA(r) "S-Type" system with Polyphonic Harmonizer 60680 to attain the "ATAK(r)" sound level (louder than "S-Type"). Optional "True Dual" Cat-Back(tm) system available, see the Related Parts section. BORLA(r) Cat-Back(tm) 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(r) 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(r) 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.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2019-2021	Chevrolet	Silverado 1500	Custom
2020-2021,2023	Chevrolet	Silverado 1500	Custom Trail Boss
2019-2023	Chevrolet	Silverado 1500	High Country
2019-2022	Chevrolet	Silverado 1500	LT
2020-2023	Chevrolet	Silverado 1500	LT Trail Boss
2019-2023	Chevrolet	Silverado 1500	LTZ
2020-2023	Chevrolet	Silverado 1500	RST
2019-2021	Chevrolet	Silverado 1500	SSV
2019-2022	Chevrolet	Silverado 1500	WT
2022	Chevrolet	Silverado 1500 LTD	Custom Trail Boss
2022	Chevrolet	Silverado 1500 LTD	High Country
2022	Chevrolet	Silverado 1500 LTD	LT Trail Boss
2022	Chevrolet	Silverado 1500 LTD	LTZ
2022	Chevrolet	Silverado 1500 LTD	RST
2022-2023	GMC	Sierra 1500	AT4X
2019-2021	GMC	Sierra 1500	Base
2019-2023	GMC	Sierra 1500	Denali
2022-2023	GMC	Sierra 1500	Denali Ultimate
2022	GMC	Sierra 1500	Pro
2019-2022	GMC	Sierra 1500	SLE
2019-2023	GMC	Sierra 1500	SLT
2022	GMC	Sierra 1500 Limited	Denali
2022	GMC	Sierra 1500 Limited	SLT