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This unit offers a re-mapped timing curve which yields a noticeable increase to horsepower and torque over the stock CDI
High pressure resistant
Cable Type: throttle
Thermo-plasticrubber
Main Jet: #120 #125 #128 #130 #132 #135 #138 #140 #142 #145
Dirt Bike Air Filters For 97-18 WR/YZ Model pwk28mm This unit offers a re-mappedModel Fitment Yamaha WR 250F (2001 2002) Yamaha WR 400F (1998 2000) Yamaha WR 426F (2001 2002) Yamaha YZ 125 (1997 2018) Yamaha YZ 250 (1997 2018) Yamaha YZ 250F (2001 2013) Yamaha YZ 400F (1998 1999) Yamaha YZ 426F (2000 2002) Yamaha YZ 450F (2003 2009) The nibbi off road air filter is made of polyurethane foam with many conical shapes cut into its surface to maximize the outer surface area, which is double the outer surface area of a normal filter.
