D&D Triumph Bonneville & Thruxton stainless steel full system pipes are manufactured with a stepped header design sporting megaphone mufflers and billet tips. This exhaust system is a full dual system featuring separate header and muffler bodies. This product is available in polished or faux-ti (titanium-texture) finish. Comes complete with O2 sensors for fuel injected models and jet kit for 08 and earlier models. We recommend re-mapping your motorcycle for peak performance and reliability.