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Yamaha: 2-stroke Includes all Yamaha 2-strokes, Viper, Mountain Max, etc
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Old 12-15-2010, 01:05 PM
LLIT LLIT is offline
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Default Power Inc End Dumps vs Center dumps HP

I was wondering what the difference in horsepower gains are between these two. Did a search but couldn't find anything (not being a premium member).
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Old 12-15-2010, 07:18 PM
MTMAXMaN MTMAXMaN is offline
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Center dumps are designed for lower rpm (8100-8200)
End dumps are higher, around 8800-9000 .
I tried a set or center dumps a while back but didn't notice a big gain over stock, you will see more gains with the end dumps. my .02
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Old 12-15-2010, 08:30 PM
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The end dumps are best when run at 8400-8500 max and they're good for at least 15 more ponys than the center dumps. They are alot louder than the center dumps and may get you in trouble with the people in charge.
Ken....
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