Akrapovic Husqvarna TE250 Full Race Exhaust Titanium. 2010 - 2011 The Akrapovic Racing and Evolution complete exhaust systems are the championship winning flagships of our product lines. They are designed for competition-oriented enduro riders who demand maximum performance from their exhaust systems, made of extremely durable stainless steel or high grade titanium. With their production quality, engine performance improvements, weight reduction and muffler design they satisfy even top pro racers. The systems are designed for two markets; in the USA they are available with an approved spark arrester, and for the EU and other non-US markets they come with a noise damper. They fulfill the strict noise regulations in enduro racing. For the Racing system we use stainless steel tubes and titanium tubes for the Evolution system. Muffler outer sleeve and end cap are always made of titanium.   Performance   Measurements of the Akrapovic EVOLUTION system on the HUSQVARNA TE 250 (with muffler insert):  Power & Torque: The Akrapovic Evolution and Racing systems deliver a performance increase throughout the bottom and top rpm range, plus huge increase of torque through entire power curve. Max. increased power of 2.3 HP  was measured at 11400 rpm, while max. power of 33.1 HP was measured at 11450 rpm.