[Shane@DBPerformance]

The ethanol gauges cost a lot due to the sensor itself being a small fortune. Haltech is now selling a slightly cheaper sensor that you should be able to use with the Zeitronix, but it's still not cheap. Unless you can somehow find one in a junkyard and get it out of there for cheap.

Baller cars usually datalog fuel pressure and oil pressure as you race also, since often a failure or under performance in one of those systems ends up taking out a motor and there is no good way to tell after the fact unless something obvious like 1 of your 2 fuel pumps stopped working.