EXCEPT ZR2 & AT4X models. Factory Split Rear Exit vehicles ONLY. This 2.5" diameter inlet into 2.75" pipes Cat-Back(tm) system by Borla(r) features a True Dual design which REQUIRES cutting the factory Y-Pipe. The system has the famous Borla(r) "S-Type" sound level with no drone inside the vehicle. The muffler contains an internal X-Pipe for increased performance and improved sound. This system features 3.5" black chrome on T-304 stainless steel tips. Systems with bright chrome on T-304 stainless steel tips, and carbon fiber tips are also available. Installation REQUIRES removal of the Factory Valance Tips. Using Borla(r) Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. 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. It is built with premium, high-quality austenitic T-304 stainless steel using computer numerical control (CNC) manufacturing techniques that ensures accurate fit and maximum performance. All this without the annoying drone often associated with performance exhaust systems. Give your Silverado or Sierra the performance and sound it deserves, bolt on a Borla(r). 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.

This Part Fits:

Year	Make	Model	Submodel
2020-2021	Chevrolet	Silverado 1500	Custom Trail Boss
2019-2023	Chevrolet	Silverado 1500	High Country
2020-2023	Chevrolet	Silverado 1500	LT Trail Boss
2019-2023	Chevrolet	Silverado 1500	LTZ
2020-2023	Chevrolet	Silverado 1500	RST
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
2019-2023	GMC	Sierra 1500	Denali
2019-2023	GMC	Sierra 1500	SLT
2022	GMC	Sierra 1500 Limited	Denali
2022	GMC	Sierra 1500 Limited	SLT