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jaradt2006

426 horsepower

3 posts in this topic

i have a 2002 yz426 i have put a new powercore4 muffler and powerbomb header on it and stage 1 fmf jet kit i was wondering if anyone could give me a round about estiment of the horsepower im working with right now i couldnt find nothing to tell me how much it had when it was stock i was just wondering any help would be appreciated

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alright thank ya i was just kinda wondering ya know and what else if it was you would you do to the bike to give it more power

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