July 3, 201312 yr I have the forge dv and a pipercross filter, it's !Removed! loud lol I belive that baileys valves don't work well with most engines and cause the ecu to get confused Any auto car with a turbo won't play well with a dump valve from what I have heard, I've seen a few people fit them to different turbo cars over the years with auto boxes and no one had a good tale to tell The flutter noise isn't the dump valve it's the waste gate that gives the chatter, the baileys valve isn't letting enough air out so some is going back to the turbo and the flutter is caused by said air hitting the fins on the turbo
July 3, 201312 yr Sorry I meant with the HKS and one of the filters put on the dump valve it gives a bit more of the flutter sound from it then the normal tissssshh sound. If I was getting Turbo flutters even though I love that sound to I would be checking it out :D
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