seems everytime i replace sumthin on my car....something else goes wrong.its always one thing after the other.but just recently i replaced my wastegate actuator cause i couldnt hold past 8-9psi.car would make a "fluttering" kind of sound and then totally lose power and feel slow as hell.so now i can boost past 10psi,BUT! still makes "fluttering" sound and eventually loses boost and is slow as hell again.cant quite figure it out dunno .anyone have any ideas?im on the verge of selling it....but i figure ill give it one more chance