Utilize FMF's patented module precisely located at the initial stage of the header for specific applications
Position "Bomb" increases performance
Horsepower is increased as much as 10%
Act as "pre-muffler", helping to lower the decibel output
The expansion and contraction of exhaust sonics through the system causes increased flow
Available in stainless steel for strength combined with light weight and in titanium for even greater weight savings
Select applications available in SX version that is designed for more low- to mid-range power and an MX version that is focused in the mid-to-upper rpm range
Fits
Manufacturer
Model
Year
YAMAHA
WR 400 F
1998
YAMAHA
WR 400 F
1999
YAMAHA
WR 400 F
2000
YAMAHA
WR 400 F
2001
YAMAHA
WR 400 F
2002
YAMAHA
WR 426 F
2001
YAMAHA
WR 426 F
2002
YAMAHA
YZ 400 F
1998
YAMAHA
YZ 400 F
1999
YAMAHA
YZ 426 F
2000
YAMAHA
YZ 426 F
2001
YAMAHA
YZ 426 F
2002
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