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which performance manifolds ?

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Old 05-08-2008, 09:41 PM
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which performance manifolds ?

Switching from iron merc (gm) heads to dart alm. pro1s figured I would also change stock exhaust manifolds. Which brand manifolds should I be looking for? Wet , dry ? Headers wont be in the budget. I read some brands are crack prone?Running BBC 496 trs setup. Currently running with 5'' risers to acomadate high in the transom thru exhaust (formula silent thunder). What hp gains can I expect? Will heat issues be any different? thanks
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Old 05-10-2008, 09:51 AM
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I had excellent results when I replaced my stock Merc logs with Stainless Marine manifolds and risers on my older Formula. Performance was excellent as was better sound!
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Old 05-10-2008, 10:23 AM
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Stainless Marine and Eickert would be at the top of my list. If you want to keep any sort of muffling capability, they'll need to be wet.
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