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For those of you who want a boost gauge, the Ultragauge is supposed to support this.

For those of you who have an old Ultragauge that you wish to use in the ST, don't !!!
I found out the hard way that the old version will prevent the newer model Ford's computer from sleeping when the key is off. This will cause the battery to be drained overnight. I got up this morning to find my battery down to 4.5 Volts.
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