ive had mine blocked off for a while now however i only blocked it off as my stock one was leaking under boost...ive recently bought a greddy type s bov..got it off a mate cheap and only bought that one coz couldnt get my hands on a gtr bov..
but the fluttering is fine...i still remember driving past some yr 8 skool kids and letting the flutters go off lol all i could here from the kiddies was ohhh woooww hehe i a had abig grin then lol