To this day - everything Yoshimura does revolves around building fast machines and winning races. What motivated Pop's Yoshimura over 50 years ago is the exact same thing that motivates Yoshimura today. Racing and winning. There is no other endeavor that they would rather be engaged in.
Header kit mates to the stock muffler or Yoshimura's RS-4 slip-on.
Tapered header pipe designed for optimal exhaust gas flow to increase performance.
All the benefits of a Yoshimura header while retaining your stock muffler.
Note: Header ONLY; does not include a muffler or tail-pipe.