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Old 07-02-09, 02:49 PM   #19
is350wh
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Join Date: Jun 2009
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09ISboy: I'm sure someone on here will know if there is a requirement. I would say that you wouldn't want the intake until you are ready to run the engine at higher RPMs. Having the intake will make it too hard to resist revving the engine before it's broken in. I don't remember the engine's "break in" period right now, but I think it is some odd number like 675 miles, so you're probably good to go, from that perspective.

Of course, I don't know if a break in period is really required. The manual says it is.
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