FMF Racing JGR Factory 4.1 RCT Limited Edition Exhaust - 044393 | Yamaha YZ450F 2010-2013

Item # : 135525

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  • Manufacturer: FMF


FMF Racing JGR Factory 4.1 RCT Limited Edition Exhaust

The FMF JGR Factory 4.1 RCT Limited Edition incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. It starts at the center with a new core - a patent pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level. In addition, this exhaust was developed exclusively for JGR utilizing the JGR and FMF internal R&D staff as well as track testing with James Stewart and Davi Millsaps. Equipped with a Titanium Megabomb header and mid pipe the actual 4.1 muffler incorporates new rear endcap engineered with it’s special grade Military Silver woven Carbon Fiber end cap that is only available on the Limited Edition JGR exhaust. The FMF JGR 4.1 RCT Limited Edition is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. Each Limited Edition exhaust has been numbered for as part of the FMF/JGR collaboration to show it’s recognition in the Series of exhaust.


  • Available in Anodized Blue with White Carbon Fiber End Cap
  • Extensive Development with JGR and FMF R&D departments.
  • Each Limited Edition System is numbered for Deluxe Recognition


  • Notice: For Closed Course Competition Use Only. Not Intended for Street Use.
  • Type: System
  • Configuration: Single
  • Const: Titanium
  • Finish: Blue Anodized
  • Midpipe: Titanium
  • Endcap: Carbon
  • Spark Arrestor: Screen Insert (included)
  • Quiet Insert: 94dB Insert (included)
  • Header Const: Titanium
  • Header Type: MegaBomb
  • Weight: 5.7 lbs.

Manufacturer Part Number: 044393