BORLA® system is a True Dual design. This 3" BORLA® mid-section / muffler assembly was designed specifically for the F-150 Raptor. It features the aggressive ATAK® sound and provides a more exciting driving experience without any drone. The system contains BORLA®'S unique Polyphonic Harmonizer technology that utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean rich full-bodied sound. The result is an aggressive custom sound and improved power. System has Active Exhaust Valves. It fits with either the Original Equipment (O.E.) tail pipes or BORLA® tail pipes 60627BC black chrome on T-304 stainless steel 60727CB Brawler style black coated T-304 stainless steel or 60627CFBA carbon fiber with black anodized center. 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® stands behind every Connecting Pipe assembly with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.