how about we all stop the ****ing bullshit and keep on topic ffs,
Rossco, after doing some reasearch on fluttering i have found general its a bad thing, i have a hks sqv bov and it does flutter, general under low speeds. A friend also has a sqv on his s15 and it also flutter under low speeds.
I know for a fact that one jap brand bov does make the fluttering noise, i think it may be blizt but i cant remember.
But before you go and change your bov, think about this for a second; once replacing the bov it will results in your afr going abit rich, and may results in the car becoming abit slower (i will have to dig up the thread but one wa member memtion what affect changing the stock bov had on 1/4mile time etc)
ohh ps. im not sure where stock bov are but i found that the s15 which had the bov just after his plenum (greddy) was able to get abit more flutter noise and before people say they arnt setup right well they are