We have a Z4 M40i on order, and I'm wondering if anyone has had experience with, and could recommend a reasonably priced OBDII gauge. The only things I'm really interested in are boost psi and coolant temperature in °F. Thanks! -- Dave
I can recommend Torque Pro for realtime monitoring in conjunction with a Bluetooth OBD dongle.
I use it to monitor the coolant temp in degC but it's easy to change units. Oil temp is a nono on the E85 sadly so I changed that data for GPS speed in km/h while I'm located in The Netherlands.