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HPO gauges (the electric kind like ISSPRO and DiPricol) use the existing ICP sensor wiring using an adapter harness that simply plugs in between the sensor and factory harness connector.
It would be possible to get another ICP sensor and mount it in the passenger side head; you'd only need to supply the sensor with the 5v reference and signal return (ground) from the original sensor.
The connector can be purchased from your GM dealer (PT2319 or PT1825) and easily spliced into the factory harness.
Analog gauges are infinitely better than digital (just the way the brain interprets visual data). I have one in each of my 7.3L trucks. They're fun to watch.
I'm not a jerk, I just tell it like it is.
1995 SC/LB 4x4 PSD/Auto
2000 RC 2wd PSD/Auto
Last edited by PHPDiesel; 03-17-2011 at 08:22 AM.