AKRAPOVIC S-H4MR11-ZTA RACE FULL EXHAUST SYSTEM STAINLESS STEEL HEADERS TITANIUM MUFFLER WITH CARBON FIBER END CAP CF TI SS HONDA CRF-450R CRF 450 450R CRF450R 09 10 11 2009 2010 2011

RACING EXHAUST SYSTEM for the HONDA CRF 450 R

The Akrapovic Racing 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. With their production quality, engine performance improvements, weight reduction and modern Hexagonal muffler design they satisfy even top pro racers. 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.

Performance

Measurements of the Akrapovic RACING system on the HONDA CRF450R (with 2mMax muffler insert):

Power & Torque: The Akrapovic Evolution and Racing systems deliver a performance increase throughout nearly the entire rpm range. It is most pronounced in the bottom and the top of the range. The systems deliver increased torque similar to the power increase. Max. increased power of 2.5 HP was measured at 9900 rpm, while max. power of 49.2 HP was measured at 9670 rpm.