FMF FACTORY 4.1 CARBON SYSTEM YAMAHA YZF, WRF, KAWASAKI KXF (2006-2010)

- YZ 250 F, YZ 450 F (2006-2009)
- WR 250 F, WR 450 F (2007-2010)
- KX 250 F, KX 450 F (2009)

€374.50 (tax incl.) €535.00
In Stock
Reference:
FMF044240
Brand:
Description

The Factory 4.1 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 is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory. Features: Massive Power gains throughout the RPM range. Huge weight savings. New RTS (Rapid Tuning System). Can be used with FMF or Stock OEM Header. 

For Yamaha YZ 250 F, YZ 450 F (2006-2009), WR 250 F, WR 450 F (2006-2010) and Kawasaki KX 250 F, KX 450 F (2009).

Product Details
FMF044240

Data sheet

Manufacturers
FMF
Speciality
MX
Moto Enduro
Brand
Kawasaki
Yamaha
Models
KX 250 F
KX 450 F
WR 250 F
WR 450 F
YZ 250 F
YZ 450 F
Year
2006
2007
2008
2009
2010
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