Akrapovic Husqvarna TC250 Race Titanium Exhaust RACING & EVOLUTION EXHAUST SYSTEM for the HUSQVARNA TC 250 (2009 - 2011)  The Akrapovic Racing and Evolution complete exhaust systems are the championship winning flagships of our product lines. They are designed for competition-oriented MX riders who demand maximum performance from their exhaust systems, made of extremely durable high grade titanium or stainless steel. With their production quality, engine performance improvements, weight reduction and modern Hexagonal muffler design they satisfy even top pro racers. Our patented additional chamber helps to reduce noise emission and provides better power and torque delivery. For the Racing system we use stainless steel tubes and composite end cap while we use titanium tubes and carbon-fiber end cap for the Evolution system. Exhausts are also equipped with removable noise dampers.   Performance   Measurements of the Akrapovic EVOLUTION system on the HUSQVARNA TC 250 (with muffler insert):  Power & Torque: The Akrapovic Evolution and Racing systems deliver a performance increase throughout the bottom and top rpm range. The systems deliver increased torque through entire power curve, what will additionally help at reducing lap times on the track. Max. increased power of 2.6 HP  was measured at 12330 rpm, while max. power of 34 HP was measured at 11700 rpm.