This 3" diameter into dual 2.75" tail pipes Borla(r) Cat-Back(tm) system has side exits (one on each side of vehicle). It features the classic S-Type sound with no drone inside the vehicle and comes with one 4" round bright chrome on T-304 stainless steel tip on each tail pipe. Borla(r) Cat-Back(tm) & Axle-Back exhaust systems feature straight-through and patented multi-core technology 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, high-quality T-304 austenitic 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 (CNC) manufacturing ensures an accurate fit. Give your Silverado or Sierra the power and sound they deserve, bolt on a Borla(r) . Best of all, Borla(r) stands behind every system with a Million-Mile Warranty in the USA and Canada (1.6 million kilometer). Products sold outside of the USA and Canada carry a 3-year limited warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.