Precision engineering and design have produced an exhaust that delivers a unique sound from its full high-grade titanium construction. Special collectors inside both mufflers eliminate streaming noise, and inner cones act as acoustic reflectors and partially direct sound from the bumper-mounted tailpipes forward toward the cabin. Sound is linearized through the rev range and engine load, providing a smooth tone at cruising speeds, and as the revs rise the sound becomes more dramatic and sportier. 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.The exhaust is finished with a pair of twin tailpipes constructed from hand-crafted carbon-fibre outer sleeves and high-grade titanium inner sleeves, and the use of lightweight race-proven materials has reduced the weight by 26.5 % (3.6 kg) over the standard stock system. Performance has been enhanced with a power increase of 6.3 kW (8.6 hp) at 6,650 rpm and a torque gain of 13.5 Nm at 2,650 rpm when tested on the Akrapovič dyno against a Mercedes-AMG C 43 4MATIC with a 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 (SS) for owners looking for an enhanced acoustic experience and greater performance from the Akrapovič 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/12 or Evolution Link Pipe Set E-ME/SS/2.With the installation of the Evolution Link Pipe Set (SS) E-ME/SS/2 and Akrapovič Sound Kit, ECE type approval of the Slip-On Line (Titanium) is no longer valid.Fitment notice: For mounting Akrapovič exhaust S-ME/T/4H on Mercedes-AMG C 43 4MATIC (W206, S206) additional original Mercedes parts have to be bought: - A 206 885 54 06 (black) or A 206 885 38 05 (carbon) or A 206 885 68 06 (silver): 1 piece - A 206 885 53 06 (black) or A 206 885 37 05 (carbon) or A 206 885 67 06 (silver): 1 piece - A 206 885 79 03: 1 piece - A 206 885 80 03: 1 piece