FMF Factory 4.1 RCT Slip-On Exhaust (Aluminum With Stainless Steel Mid Pipe And Carbon Fiber End Cap) Compatible With 19 YAMAHA YZ250F


Brand FMF
Material Stainless Steel
Item Dimensions LxWxH 15.75 x 7.09 x 7.87 inches
Item Weight 4 Kilograms

About this item

  • The Factory 4.1 RCT 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, it achieves a shorter overall length that is less susceptible to crash damage and complementary to the Factory Forward Engineering – moving the muffler(s) closer to the motor to centralize mass.
  • Visible changes to the exterior include a redesigned canister to increase internal capacity for the maximum volume of packing material.
  • The packing itself was not overlooked – a proprietary blend formulated for superior durability and sound attenuation.


Technical Details