BORLAÂ system is a True Dual design. This 2.75" diameter Mid-Section / Muffler Assembly includes Active Exhaust Valves. The muffler has an internal H-Pipe for increased performance and improved sound. The system delivers the aggressive ATAKÂ sound with no drone inside the vehicle. This Mid-Section fits with either BORLAÂ tail pipes 60743BC black chrome on T-304 stainless steel 60743CB brawler style black coated T-304 stainless steel 60743CFBA carbon fiber with black anodized center or the Original Equipment (O.E.) tail pipes. The system is constructed using 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 it is backed by our Million Mile Warranty., System Features:, Cat-Backâ„¢ Exhaust System, System is a True Dual design, ATAKÂ Sound Level, Includes Active Exhaust valves, T-304 Stainless Steel Construction, Million Mile Warranty