Well, Blast me if you will, But I for one like BOVs. It is part of a turbo car's characteristics. But I think by far the best BOV on the market is the HKS SSBOV. Tried many other but keep coming back to the good ol' HKS. Actually I took my BOV off for an autox and my car didn't perform as well with out it. I know the use of BOV (expecially on the WRX) is debatiable but now you know where I stand at least.