Yoshimura - RS-4D Exhaust Systems


  • Championship-winning exhaust system from Yoshimura
  • Dual internal baffle design increases exhaust outflow for improved throttle control and smoother power delivery
  • Boosts horsepower throughout the power curve, especially at the low- and mid-range rpms where riders and racers need it the most
  • Full titanium header pipe
  • Muffler sleeve is glossy carbon fiber or titanium with dual-outlet carbon fiber end cap
  • Titanium muffler has AMA-legal sound inserts installed
  • All necessary hardware for installation included