yea if its any of the inovate gauges they come with a free air calibration switch....im assuiming thats prob what it is.....
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95 LTx Z28 Quasar Blue
386ci w/Advanced Induction HCI #3190 Naturally Aspirated....9.77 @138.4
2010 LTX Shootout Modified Naturally Aspirated Champion
2011 LTX Shootout Modified Naturally Aspirated Champion
06 GTO M6 LS2 Torrid Red on Red--FAST 102, Advanced Induction HR Cam...433rwhp/410rwtq
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