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Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

  • Part #:
    436645
  • Manufacturer Part #:
    234812D321

MSRP Price: $425.00

Our Price: $382.50

You Save:
$42.50 (10%)
1 on Hand

Overview of Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

  • The work that went into developing the RS-4 muffler has paid big dividend in Off-Road Racing; winning multiple Supercross and Motocross titles since it's inception
  • The current generation RS-4 is based on that research and development, and the result is a unique design that provides and 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 finished off it's innovative styling
  • Pentagonal shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Two-staged stepped baffle
  • Carbon fiber end cap
  • Stainess steel tailpipe
  • INS-19-K low volume sound insert installed
  • INS-16-K 94db low insert included
  • For optinal spark arrestor order 43-4673

Additional Fitment:

Yamaha -

YZ450F  2016



Included Items:

(1) Muffler W/mid-pipe

(1) Exhaust plug

(1) 8" X 10" Sheet of heat shield foil

(1) Low volume insert

(1) Exhaust clamp

(1) Rubber grommet

(1) 8mm-1.25 X 35mm Flange hex head bolt

(1) 8mm Flat washer

(1) Aluminum flange spacer

(1) 6mm-1 X 12mm Button head bolt

(1) 6mm External tooth washer

Instructions 

Specs for Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

Color - Primary Silver
Style Canister Muffler
Type Muffler/Silencer w/o Spark Arrestor
Units Each
Weight 11.15 lbs

Cross reference number(s):

18211661

Specs for Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

Color - Primary Silver
Style Canister Muffler
Type Muffler/Silencer w/o Spark Arrestor
Units Each
Weight 11.15 lbs

Fitment for Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

See if this part fits your ride

Part 436645 fits the following machines

Yamaha
  • 2018 Yamaha WR450F
  • 2017 Yamaha WR450F
  • 2016 Yamaha WR450F
  • 2017 Yamaha YZ450F
  • 2016 Yamaha YZ450F
  • 2015 Yamaha YZ450F
  • 2014 Yamaha YZ450F
  • 2018 Yamaha YZ450FX
  • 2017 Yamaha YZ450FX
  • 2016 Yamaha YZ450FX
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Instructions and Manuals for Yoshimura RS-4 Signature Series Slip-On Muffler - 234812D321

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