YOSHIMURA RS-4 RM-Z250 2010-18  HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320
YOSHIMURA RS-4 RM-Z250 2010-18  HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320
YOSHIMURA RS-4 RM-Z250 2010-18  HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320
YOSHIMURA RS-4 RM-Z250 2010-18  HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320
YOSHIMURA RS-4 RM-Z250 2010-18  HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320

YOSHIMURA RS-4 RM-Z250 2010-18 HEADER/CANISTER/END CAP EXHAUST SLIP-ON SS-AL-CF 218312D320

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$394.99
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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
  • Stainless steel tail-pipe