Anyone using one of these gauges and using the extra MAP kit to run SC
BOOST through the gauge?

 

I am and as far as I can tell they work fine. I running the 3.1" pulley which is supposed to produce 8 - 8.5 psi depending on the atmospheric conditions and that's what it reads. It shows a negative psi for the vacuum at part throttle , around -10.7 psi at idle for my car. Since these aren't factory senders you can't use the boost window from the list of parameter , you have to use either the Analog 1 or Analog 2 window so it doesn't say boost on the display , but that's no big deal. They also have a record function that will record a minute or a little more of data for the two windows that the gauge is currently set to display , and you can then play it back later. So far I really like them a lot ...