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I have no personal experience with this. Just that Gary Donovan makes a point of it on his site.

Well said Rob.



I think all three of us are saying the same thing. Rob just went into much more detail... :thumb:

Unless you are doing a serious build, the 58mm TB is too much. It will kill your mpg's(if you're worried about that).

Be very careful with "gasket matched" 2 piece intakes. If the porter only...