RX7Aggie

hope these help, from that third pic you can tell the BOV is stand alone from other emissions/fuel systems. the BOV is simply a valve in the middle of a hose running before and after the turbocharger activated by a vaccuum in the intake manifold/dynamic chamber or whatever it is.

Racer X

So my vaccum line just goes to the UIM then?

ILUVMY88CABRIO

Here are pics of the stock bypass valves. The one with the black sticker on it is a S4 (on the left), and the one with the green sticker is the S5. The S4 is made of aluminum, and the S5 is made of black plastic.

ILUVMY88CABRIO

Another shot...