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Yoshimura RS-4 Exhaust Systems for 2009 Honda CRF450R

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 with the Honda Motocross Race Team and that technology has been passed to you! Justin from R&D explains what makes the RS-4 such a special system.