Anyone know if the BOV will be upgradable? I was reading that it is integrated in the compressor housing, but any way to change it? Or is there gonna be anyway to mod it from the factory to give it a nice "pssssss" blow off sound? I love the sound my friend's VR-4 BOV makes. I hope to be able to make my SRT-4 have a nice BOV sound. Anyone got any ideas??