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xtullyx16
11-12-2007, 07:15 PM
Will a sparks x-6 big core decrease power on a stock 400ex engine?? would i seee good power gains??

11-12-2007, 07:34 PM
are you looking at the 1 for sale on here? the x6 with a stock motor has way too much flow. the x6 is strictly for big bore modded engines. to me i think you might see a HP loss just because its so big.

CSR400EX
11-12-2007, 08:10 PM
Originally posted by FoxHondaRider
are you looking at the 1 for sale on here? the x6 with a stock motor has way too much flow. the x6 is strictly for big bore modded engines. to me i think you might see a HP loss just because its so big.
IMO, i had one on my 400, it had a cam(stage 1), rev box, pro-flow kit, and choke removed, and it ran very good. i took second in the fair drag races with that setup(lost only to a big bore DVX400)