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Originally Posted by JFB06M
Does anyone have the Vortech Maxflow Race Blow off valve on their ESS supercharged Z?
I am told ESS modifies this valve for their kits and it is "silent while cruising".
What videos I can find are non-ESS kits and presumed stock Vortech valve….and they are hardly silent.
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Yes I have this valve on my Z4M with the 525 kit .
George