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![STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 044456](http://www.fmfracing.com/cdn/shop/files/4P1_GUNMETAL_SYSTEM_YAMAHA250_209fd037-6c2b-4bef-b6fa-6fbb98c0642f_{width}x.jpg?v=1698874958)
STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM 044456
![FG icon](http://www.fmfracing.com/cdn/shop/t/24/assets/icon-freegift.png?v=108311353277274706321654618370)
044456
![](http://www.fmfracing.com/cdn/shop/files/FMF_NUMBER_1_PLATE_2024_115cb055-1653-4827-b0c9-973185f549fc_{width}x.png?v=1712857702)
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.
-Available in Natural Aluminum with Carbon Fiber End Cap
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend stainless steel made especially to our standards.
Item ID:044456
Type:System
Configuration:Single
Const:Aluminum
Finish:Natural
Midpipe:Stainless Steel
Endcap:Carbon
Spark Arrestor:Screen Insert (included)
Carb Warning:no
Quiet Insert:94dB Insert (included)
Header Const:Stainless Steel
Header Type:MegaBomb
Weight:13.6 lbs.
Make | Model | Year |
---|---|---|
YAMAHA | WR250F | 23-24 |
YAMAHA | YZ250F | 19-25 |
YAMAHA | YZ250FX | 20-25 |