This 2.75" diameter performance Merge X-Pipe is designed to unleash power while adding a great sound. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla(r) Sound of Power respected by motoring enthusiasts everywhere. 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(r) stands behind every X-Pipe with a Million-Mile Warranty. Just what you'd expect from the worlds most experienced (and most winning) exhaust brand.