The 3" diameter Borla Cat-Back system has a side exit (passenger side) featuring the classic S-Type sound level with no drone inside the vehicle, and a 4" round black chrome on T-304 stainless steel tip. Using Borla Stainless Steel Polish p# 21499 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. 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, high-quality T-304 austenitic stainless steel, superior to T-400 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. Give your Silverado or Sierra the power and sound it deserves, bolt on a Borla. You can count on Borla to provide durability, performance, sound, and a Million-Mile Warranty. See separate note about warranty on tip finish.

Fitment notes

• Factory Single Side Exit vehicles ONLY.
• Add Adapter 60708 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles.
• Fits Factory Side Exit vehicles ONLY.