I Have The Hks Valve And It Made The Normal Sound But After I Fitted A FMIC It Made The Fluttering Sound, It Only Makes The Sound Under Half Boost. When Im Giving It Some On Full Boost Its Almost Silent.
Deazy, there is a bolt and nut adjustment on the sqv, is yours wound nearly fully in? if it isn't it needs to be on the gtst if ure running standard tubbys n boost! mine did this until i spoke to nemisis and they informed me to wind it almost fully home, and the fluttering noise dissapered!
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