I kno there are threads on how you should tune you BOV but i can't seem to find one for my situation. I have a RFL BOV, GM MAF, MAF-T, and DejonTool UIC.From the looks of it the BOV points downward off of the UIP and in the instructions i got from TurboXS it says look to see if the exhaust ports open at idle and then add discs to tune. Now 1)my BOV has no exhaust ports and 2)it points downward from the pipe so how can i see if it's opening or not. I just wanna know if anyone else has this setup and knows about how i should tune it(i know all dsm's are different and everything). I'm just looking for a point in the right direction.