I have the HKS SS bov installed, but for some reason it takes forever to start working. From what I've read it's normal for it to need to warm up a little before it starts working right, but I don't think it should take very long. I usually start the car and let it run for 5-10 minutes before driving and then have to drive approx. 10 minutes before it will work. If I boost before this I get compressor surge at any psi, but once it's started working it whistles/chirps at any psi. Any ideas?