We have designed ultra-short, straight-shot downdraught billet intake manifolds and intake rubbers with precisely the right section for optimum intake velocity. The optimised round-to-oval shape transition in the CNC manifold block going into the reed cavity is worth 3HP alone.Plus, the straight intake rubber boosts power by 5%. These items the Cheetah engine was simply begging for. The ATV crowd tends to simply fit the biggest manifolds/reed blocks they can get a hold of ... wrong move. Intake velocity has to be kept high as it hits ...