I think it's really specific to each MSP. My BOV is on the the cold pipe abdout 16-18 inches from the throttle body. I have both ports on the back of the bov coming from one line off the intake mani. And I have one line which is the constant boost coming from about 12 inches or so on the hot pipe after the turbo. That source is going to the port on the sideof the BOV. I think it works pretty well. I'm in San Diego every weekend. If you wanna see let me know.