2 of their oil coolers failed cause the braided lines ripped out of the fittings due to poor assembly. Oops.
Try two valves, might be the pressure differential making the noise. anyone know for sure that it's not surge? My turbo started fluttering really bad when the vac line to the bov got accidentally disconnected. No vent = air reverberating in the system and making that fluttering sound. It can possibly be that the bpv is not venting enough air also; causing some air to vent and some to surge.
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