According to Lee Hindle, they design their pipes (full systems) in hopes of producing 7-10 more horsepower over stock (with remapped EFI)...
Most full systems gain higher-rpm (peak) power at the expense of low-to-mid rpm power. The increased air flow typically allows a bike to rev freer at the later portion of the powerband.
By the way, as a pet peeve... there is no such thing as "hitting a power band", in that a power band is some sort of boost in power that you reach at a certain rpm range. A powerband is an overall description of the power a bike produces THROUGHOUT the entire range. A dyno curve is a visual of a bike's POWERBAND. Just had to get that off my chest. And no, 636pride, that wasn't a criticism directed at you or any one in particular.
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