• Yoshimura

Yoshimura RS-4 Competition Series Exhaust System

  • Part #: 435505
  • Manufacturer Part #: 2310523
This item is no longer available
435505
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Overview of Yoshimura RS-4 Competition Series Exhaust System

  • Delivers huge power at a very light weight
  • Lower centralized mass coefficient improves handling
  • Pro-Series features a titanium header construction;Competition Series features stainless steel header construction
  • Tapered head pipe delivers optimal flow and performance
  • Front cap design functions as a polyresonant chamber to lower dB output while improving mid- to top-end power
  • Two-staged, stepped baffle
  • Pro-Series features carbon fiber or titanium, muffler sleeve; Competition series features aluminum muffler sleeve with brushed finish
  • 99 dB and 94 dB muffler inserts available separately from Yoshimura

Included Items:
(1) Header
(1) Tailpipe
(1) Muffler w/aluminum sleeve
(1) Header heatshield
(2) Header heatshield bolts
(1) 8mmx20mm Flanged hexhead bolt
1) Small muffler spring
(1) 8mmx25mm Flanged hexhead bolt
(1) 8mm Large flat washer
(1) Muffler bracket rubber grommet
(1) Aluminum insert
(1) Muffler washer plug
(1) Muffler spring tool
(1) Yoshimura vinyl sticker
(1) Instructions

Specs

Specs for Yoshimura RS-4 Competition Series Exhaust System

Fitment for Yoshimura RS-4 Competition Series Exhaust System

Part 435505 fits the following machines

See if this part fits your ride

Yamaha
2013 Yamaha YZ250F
2012 Yamaha YZ250F
2011 Yamaha YZ250F
2010 Yamaha YZ250F

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Instructions and Media for Yoshimura RS-4 Competition Series Exhaust System

Instructions - PDF Instructions - PDF Instructional PDF
Video Product Info: Yoshimura: Building a Muffler Sleeve Instructional Video 1:17