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hp500 efi cmi to stainless marine exhaust

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Old 05-07-2009, 05:27 AM
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Default hp500 efi cmi to stainless marine exhaust

anyone switch from cmi to stainless marine on hp 500 efi, wanted to know performance info. Has anyone noticed loss or gain in power mid range or top end.
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Old 05-07-2009, 07:45 AM
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less power / with STAINLESS MARINE cmi"s are great
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Old 05-08-2009, 06:59 AM
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what kind of loss have you seen
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Old 05-13-2009, 05:11 AM
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looking for anyone who has replaced hp 500 exhaust cmi, with stainless marine. Wanted to now if any power loss or gain.

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Old 05-13-2009, 06:37 AM
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Stainless Marine has one of the better exhaust systems out there. So does CMI. Doubt if you would notice a difference between them.
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