
The Story
Ā
The Factory 4.1 RCT muffler is designed with FMF Resonance Chamber Technology⢠and Factory Forward Engineering for superior performance. Its aerospace grade materials offer added crash protection and centralized mass, while its shorter length enhances your ride. Made in Southern California, this muffler is a must-have for any moto enthusiast.
-Available in Blue Anodized Titanium Muffler with Carbon End CapĀ
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.
Features
Notice:Closed Course Use Only
Item ID:044455
Type:Slip-On
Configuration:Single
Const:Titanium
Finish:Blue Anodized
Midpipe:Titanium
Endcap:Carbon
Spark Arrestor:Screen Insert (included)
Carb Warning:no
Quiet Insert:94dB Insert (included)
Weight:7.0 lbs.
Fitment:
2019|Yamaha|YZ250F|
2020|Yamaha|YZ250F|
2020|Yamaha|YZ250FX|
2021|Yamaha|YZ250F|
2021|Yamaha|YZ250FX|
2022|Yamaha|YZ250F|
2022|Yamaha|YZ250FX|
2023|Yamaha|YZ250F|
2023|Yamaha|YZ250FX|
2024|Yamaha|YZ250F|
2024|Yamaha|YZ250FX|
Description
Ā
The Factory 4.1 RCT muffler is designed with FMF Resonance Chamber Technology⢠and Factory Forward Engineering for superior performance. Its aerospace grade materials offer added crash protection and centralized mass, while its shorter length enhances your ride. Made in Southern California, this muffler is a must-have for any moto enthusiast.
-Available in Blue Anodized Titanium Muffler with Carbon End CapĀ
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.
Features
Notice:Closed Course Use Only
Item ID:044455
Type:Slip-On
Configuration:Single
Const:Titanium
Finish:Blue Anodized
Midpipe:Titanium
Endcap:Carbon
Spark Arrestor:Screen Insert (included)
Carb Warning:no
Quiet Insert:94dB Insert (included)
Weight:7.0 lbs.
Fitment:
2019|Yamaha|YZ250F|
2020|Yamaha|YZ250F|
2020|Yamaha|YZ250FX|
2021|Yamaha|YZ250F|
2021|Yamaha|YZ250FX|
2022|Yamaha|YZ250F|
2022|Yamaha|YZ250FX|
2023|Yamaha|YZ250F|
2023|Yamaha|YZ250FX|
2024|Yamaha|YZ250F|
2024|Yamaha|YZ250FX|











