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Old August 1st, 2007, 08:42 PM
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Gn1r Vs Chapman

I would like to know if it has a large difference between the gn1r and the chapman at present I run with (s2) gn1r, can I have a considerable profit with the chapman ??


sorry for my bad english
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Old September 30th, 2007, 05:47 PM
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Old October 1st, 2007, 10:46 AM
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Stage 2

I Beleive Chapman Flows Alot More Air Than Gn-1 Heads I Have Both And Have Seen Them Side By Side If I Had The Choice I Would Run Chapman Heads Instead Of The Gn-1 R Heads This Is Just My Opinion Maybe Someone Else Will Chime In............ Good Luck
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Old October 1st, 2007, 12:48 PM
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The Chapman S2 heads will flow more.
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Old October 1st, 2007, 03:35 PM
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I know has a difference of flow, I wants to know if
really a ( BIG) difference for HP ???
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Old October 3rd, 2007, 07:19 AM
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Thumbs up heads

more flow more power more hp...
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Old October 3rd, 2007, 07:21 AM
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more hp = low budget
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