This 3.5" diameter into dual 2.25" Cat-Back* system delivers the classic S-Type sound with no drone inside the vehicle. The system features single 4" round bright chrome on T-304 stainless steel tips on each tail pipe. A system with black chrome on T-304 stainless steel tips is also available. BORLA? Cat-Back* & 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.
S-Type Cat-Back Exhaust System 2014-2018 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic/ Manual Transmission 2 & 4WD Extended Cab With Standard Bed (6' 7") 143.5" Wheelbase/ Crew Cab Short Bed (5' 9") 143.5" Wheelbase.
Million Mile Warranty
2014-2018 Chevrolet Silverado 1500/ GMC Sierra 1500 6.2L V8 Automatic/ Manual Transmission 2 & 4 Wheel Drive Extended Cab With Standard Bed (6' 7") 143.5" Wheelbase/ Crew Cab With Short Bed (5' 9") 143.5" Wheelbase.

Fitment:
2014 Chevrolet Silverado 1500 High Country
2014 Chevrolet Silverado 1500 LTZ
2015 Chevrolet Silverado 1500 High Country
2015 Chevrolet Silverado 1500 LTZ
2015 GMC Sierra 1500 Denali
2015 GMC Sierra 1500 SLT
2016 Chevrolet Silverado 1500 High Country
2016 Chevrolet Silverado 1500 LTZ
2016 GMC Sierra 1500 Denali
2016 GMC Sierra 1500 SLT
2017 Chevrolet Silverado 1500 High Country
2017 Chevrolet Silverado 1500 LTZ
2017 GMC Sierra 1500 Denali
2017 GMC Sierra 1500 SLT
2018 Chevrolet Silverado 1500 High Country
2018 Chevrolet Silverado 1500 LTZ
2018 GMC Sierra 1500 Denali
2018 GMC Sierra 1500 SLT