This 3 in. diameter into dual 2.75 in. Borla Cat-Back system features the mellow Touring sound level with no drone inside the vehicle, and 3.5 in. X 3.28 in. in.square in. bright chrome on T-304 stainless steel tips. Systems with black chrome on T-304 stainless steel tips and carbon fiber tips are also available. Installation REQUIRES removal of the Factory Valance Tips. 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. Give your Silverado or Sierra the power and sound they deserve, bolt on a Borla .

140780 S-Type Cat-Back Exhaust System Features:

• EXCEPT Tremor and Black Appearance Package
• System features Polyphonic Harmonizer technology
• Add adapter 60556 for Crew Cab with Standard Bed (6' 7 in.) 157.2 in. wheelbase vehicles
• Add adapter 60564 for Extended Cab with Long Bed (8' 2 in.) 164.1 in. wheelbase vehicles