600 HO / 600 SDI
/ XP 600 SDI
 Powder coated black and comes
with your choice in domes for flatland , mountain elevation or
racing applications. The head gives better cooling and created 6
to 8hp in the motor throughout the power band.
800 /
800 HO / 800 R XP

This new Billet Head is Natural billet
finish and comes with your choice in domes for flatland , mountain elevation or
racing applications. The head gives better cooling and created 6
to 8hp in the motor throughout the power band.
1000 SDI

BOYESEN VALVE
& POWERPACK Complete Air/Fuel
control. Boyesen's Power pack is designed to optimize your
airflow intake and fuel delivery eliminates off-idle hesitation
and unleashing phenomenal increase in HP & Torque
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