yoshimura pipe ???
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Dirt Wheels just did a report in the November issue on the slip on. Yoshimura says to go up one size from the stock main jet which is 150. It was the rs-3 slip on they tested. It weighs 4 lbs compared to 8 of the stocker and they said it gave about a 3hp increase. I have seen 400's with them on and the sound pretty nice, not as loud as the wb e-series, but pretty close.
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