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  • Yoshimura

Yoshimura RS-4 Pro-Series Exhaust System w/Titanium Muffler - 2258167

  • Part #: 435251
  • Manufacturer Part #: 2258167
  • MSRP Price: $944.95
  • Our Price: $850.46
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435251
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Overview of Yoshimura RS-4 Pro-Series Exhaust System w/Titanium Muffler - 2258167

  • 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) Muffler assembly w/sleeve
(1) Flange
(1) Manifold
(1) Header
(1) 8mm Large washer
(1) Aluminum spacer
(1) 8mmx35mm Flanged hexhead bolt
(1) Medium exhaust spring
(3) Small exhaust springs
(1) Aluminum bracket rubber grommet
(1) Insert kit
(1) Spring puller tool
(1) Offroad endcap plug
(1) Yoshimura vinyl sticker
(1) Instructions

Specs

Type Complete System w/o Spark Arrestor
Units Each
Weight 11.45 lbs

Specs for Yoshimura RS-4 Pro-Series Exhaust System w/Titanium Muffler - 2258167

Type Complete System w/o Spark Arrestor
Units Each
Weight 11.45 lbs

Fitment for Yoshimura RS-4 Pro-Series Exhaust System w/Titanium Muffler - 2258167

Part 435251 fits the following machines

See if this part fits your ride

Honda
2012 Honda CRF450R
2011 Honda CRF450R

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Instructions and Media for Yoshimura RS-4 Pro-Series Exhaust System w/Titanium Muffler - 2258167

Instructions - PDF Instructions - PDF Instructional PDF