Skip to product information
1 of 2

FMF

FMF Aluminum Factory 4.1 RCT - 044406 - (Slip-On) Carbon Fiber End Cap 2014-2017 Yamaha YZ450F

Regular price $607.49 USD
Regular price $674.99 USD Sale price $607.49 USD
Sale Sold out

FMF Aluminum Factory 4.1 RCT - 044406 - (Slip-On) Carbon Fiber End Cap 2014-2017 Yamaha YZ450F

 See More Products from FMF

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

FMF Aluminum Factory 4.1 RCT (Slip-On) Carbon Fiber End Cap:

  • RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
  • Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
  • FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
  • Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
  • Compatible with stock header or FMF header
  • Meet AMA and FIM sound requirements
  • Quiet Core 94db insert included
  • Spark arrestor included in muffler
  • Made in the U.S.A.
  • Spark Arrestor: Screen Insert (included)
  • Quiet Insert: 94dB Insert (included)
  • Weight: 5 lbs.

 To see more YZ450F performance products check out Yamaha YZ450F Performance Section 

Moto-House MX - Choice of Champions - Best Motocross Shop in Central Florida 


  • Moto-house MX Offers Free shipping over $65 dollars

    Free Shipping

    Orders over $65 Ship Free in the continental 48 States