This full high-grade titanium construction exhaust is finished with a twin pair of bumper-mounted tailpipes with hand-crafted carbon-fibre outer sleeves and titanium inner sleeves. Special collectors inside both mufflers eliminate streaming noise, and inner cones act as acoustic reflectors to partially direct sound from the tailpipes to the cabin. Sound is linearized according to engine load and rpms. Smooth and refined at cruising speeds, it becomes sportier and more dramatic when driving dynamically. Sound is controlled with two exhaust valves and by a control kit, which monitor driving parameters and precisely control the opening and closing of the valves to create a distinctive and finely tuned sound. Power is increased by 7.1 kW (9.6 hp) at 2,000 rpm, and a torque gain of 33.7 Nm at 2,000 rpm was achieved when tested on the Akrapovič dyno against a Mercedes-AMG C 63 S E PERFORMANCE with a standard stock exhaust. Weight is reduced by 26.8 % (3.7 kg) against over the standard stock exhaust.This product is ECE type approved. The plug-and-play installation means no remapping is required. An optional Akrapovič Sound Kit is also available, as well as an optional Evolution Link Pipe Set (Titanium), for owners looking for an enhanced acoustic experience and greater performance from the Slip-On Line (Titanium) exhaust.The Slip-On Line (Titanium) exhaust system is ECE type approved for cars equipped with a gasoline particulate filter.With the Slip-On please choose one of additional mandatory products: Link Pipe set L-ME/T/10 or Evolution Link Pipe Set E-ME/SS/7.With the installation of the Evolution Link Pipe Set (Titanium) E-ME/T/7 and Akrapovič Sound Kit, ECE type approval of the Slip-On Line (Titanium) is no longer valid.