Borla(r) system is a True Dual design. This Mid-Section includes a merge X-Pipe and ATAK(r) mufflers for increased performance and our distinctive Borla(r) sound. X-Pipes unleash hidden horsepower. It fits with either the O.E. tailpipes or Borla(r) tailpipes. Built from premium T-304 stainless steel superior to T-400 series (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 Mid-Section with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.