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Whipples performance kit for HP500

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Old 11-20-2004, 04:28 PM
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Question Whipples performance kit for HP500

Anyone tried the Whipple performance kit on an HP500? I believe they do a reprogram of the ECM, bump up the rev limiter and do some thermostat mods. I think you're supposed to get another 30 or so hp from this and for around $350. I'm just wondering if anyone has tried this and if so how did it work?
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Old 11-22-2004, 04:17 PM
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Default Re: Whipples performance kit for HP500

Anyone ???
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Old 11-22-2004, 04:46 PM
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Default Re: Whipples performance kit for HP500

call mark at precision marine , he will give you the low down. e
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Old 11-22-2004, 05:09 PM
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Default Re: Whipples performance kit for HP500

Vortech makes a kit that makes 25-40Hp (somewhere in that range) for the HP500EFI also
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Old 11-25-2004, 09:50 PM
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Default Re: Whipples performance kit for HP500

Craig,
There is a guy here on the Lake that just did the install on a 525. PM me or call my cell if you still have it I'll get you in touch with him and he can go thru the whole deal.
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Old 11-26-2004, 12:30 AM
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Default Re: Whipples performance kit for HP500

Did a 35' nordic and got an honest 3-4mphs. A lot of the speed increase depends on where your boat is falling off currently.
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Old 11-26-2004, 06:05 AM
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Default Re: Whipples performance kit for HP500

AS&M also has a kit! I got 2 mph from it on my hp500efi!
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