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The new LeoVince FASTBOX gives you the same kind of instantly tunable power factory riders depend on.
Specially designed to work with X3 MX exhaust systems, FASTBOX lets you choose, with the flick of the
handlebar switch, from the high peak power and maximum top end of the RACE setting, the reduced noise
and smooth power delivery of the WET setting, and the softer, more manageable power delivery of the
TORQUE setting, which is ideal for taming the brutal power of current 450cc MX bikes.
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