• This item is proudly made in the USA.

    New, power Bowl 2 from R&D racing.

    Fits the YFZ450 2004-2009

    Features:
    • Eliminates hesitation and bogging
    • Better holeshots
    • Provides instant response to throttle movements
    • Starts easier
    • Reduces hot engine stalling
    • Improves low end performance
    • Bolt-on product that requires no modification
    • New 2nd generation products use left hand adjusters