Back pressure
Compared to an open header, yes.
If you are trying to use a racing evac system designed to be used with an open header, then having a full exhaust system, even one with loudmouths, may not allow it to provide the necessary vacuum. I would ask the manufacturer, giving them your exact configuration.
If you are trying to use a racing evac system designed to be used with an open header, then having a full exhaust system, even one with loudmouths, may not allow it to provide the necessary vacuum. I would ask the manufacturer, giving them your exact configuration.
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tj@steeda
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Sep 1, 2015 08:16 PM



