Created from high-grade, durable, and lightweight titanium, the Evolution Line (Titanium) is 45% lighter than the standard stock version. It features specially-designed tailpipes – fashioned in the in-house foundry – that exit on both sides of the car. This new Evolution Line (Titanium) exhaust has been perfectly routed to fit within the limited space of the car, and its surface has been coated for increased durability. Power and torque levels are increased through the entire rpm range, with increases of 15.8 kW (21.4 hp) and 25.3 Nm at 5,950 rpm when tested on The Akrapovic dyno against a G 63 with a standard stock system. A pair of exhaust valves behind the rear mufflers provide control of the exhaust tones, delivering a uniquely deep and sporty sound. The exhaust complies with ECE type approval and does not require remapping.