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hey mate, the flutter is not caused by a front mount. it is caused by the tightness of the BOV. You do not want the flutter because this is known as compressor surge, where the air produced by the turbo has nowhere to go and the fluttering noise is in fact the turbo chopping the air. I have this problem since my stock BOV cant support 17Psi and it flutters.

Hope that fills u in that this is not a good thing :(

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