Can valve #035133517 be used as a bypass valve? What is the spring set to open at? In case you want to know, it's the cut off valve that most all of our Audis have. I think in on way or another, it runs to the throttle body. I use two of them together. I think I'm going to go with the 3b dump valve. Steve '84 5ksT 1.6-2.0 bar