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  1. Performance Modifications
    Hi, I’ve got a 2001 Honda 400ex that’s been bored to a 440cc with Stage 3 Hot Cams along with it being ported and polished, etc. Now, I’ve removed the air box lid and installed a Uni Foam Filter and deleted the snorkel tuba on the air box. It’s already got a full Yoshimura off-road exhaust and...
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