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Discussion Starter · #1 · (Edited)
I have a 2001 400ex with a 416 big bore, 11:1 piston, and Lexx MXe slip on exhaust. I am curious what horsepower numbers this setup will be making. I don't have access to a dyno and just want to know the ball park of what kind of horsepower this will be making. I am also looking for any cheap upgrades to gain a little more power.

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