Yoshimura 2010 RS-4 Exhaust System (Honda) CRF250R
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Yoshimura R&D has developed an evolutionary new exhaust system for the exciting new Honda CRF450R. The all-new Yoshimura RS-4 was designed after extensive testing and the results are profound.
Yoshimura has been the official exhaust supplier to Team Honda Red Bull Racing for several years now. All of that experience has helped Yoshimura in making an exhaust that compliments an already great bike. The RS-4 not only increases power and is light, but it also has a lower centralized mass coefficient to provide better handling. Additionally, an overall improvement to the big Honda's power delivery was also realized. The RS-4 is pentagonal shaped muffler that features a carbon fiber cone end cap, two staged stepped baffle and striking good looks. A tapered header pipe design is used for optimal flow and performance. The RS-4 muffler features a new front cap design that functions as a polyresonant chamber. This design makes for a quieter muffler with improved mid to top end power. Systems come with a 99db sound insert installed in the muffler. Optional 94db (AMA legal) and 96db sound inserts available separately. The RS-4 will be available in a Stainless Slip-on, a Full Stainless System and a Full Titanium System with an optional carbon sleeve. |
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