This 2.75" diameter Cat-Backâ„¢ system was designed specifically for the Bronco Raptor R 3.0L V6 Twin Turbo. The BORLAÂ High Clearance Climber / Rock Crawler system is perfect for off-roading overlanding and rock crawling. The system features Active Exhaust Valves. Muffler contains an Internal H-Pipe for increased performance and improved sound. The system features the aggressive ATAKÂ sound. BORLAÂ's advanced muffler technology delivers great sound outside the vehicle with no drone or resonance inside the vehicle. It features dual 2.75" brushed T-304 stainless steel tail pipes with turn down tips. BORLAÂ Cat-Backâ„¢ exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power driving excitement fuel economy and the distinctive BORLAÂ Sound of Power respected by motoring enthusiasts everywhere. Each system is 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 BORLAÂ stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.