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 Akrapovic dyno against a Mercedes-AMG C43 4MATIC with a standard stock exhaust. This product is ECE type approved. The plug-and-play installation means no remapping is required.