Got my Legacy back on the road and its running good and pulling strong but I had another Legacy B4 during the week with a HKS SSQV BOV and down low with small boost it would flutter and when driving hard you'd hear the BOV it also had a lot of induction noise which I thought was because it had an Apexi Filter but I installed the same BOV onto my Legacy and same Apexi Filter and no flutter or loud induction noises?? I don't care about the flutter I'm just wondering how is mine different? I have a boost gauge and first turbo is 10psi and second is 15psi is this right? The BOV seems to work down low revs which didn't in the other legacy it would flutter instead, is this the way it should be or should I hear The flutter and loud induction noises? I just want to make sure my Legacy is running right?