Hello David.
Still waiting for a new WB controller for the Chev- ordered the wrong 4.9 sensor instead of a 4.2 and instead of taking the shipping hit, ordered a new controller to match the sensor- they are very reasonable these days out of 14point7.

Does the E37 require a 58X wheel?
Just planning here- if there is a suitable unit, gives me time to source ecu and harness. Is the MS3 at all in the running here, I don't know what the cost is but I do know it is very flexible.