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Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF
Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF
Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF
Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF
Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF

Yoshimura KX450F 2009-15 Signature RS-4 Full System TI-CF-CF

Vendor
Yoshimura
Regular price
Sold out
Sale price
$924.99
Shipping calculated at checkout.

The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Two-stage stepped baffle
  • Carbon fiber end-cap
  • Titanium header and tail-pipe
  • Weight: 1.9 lbs lighter than stock configuration