Those gauge pods are electric and were a plug and play upgrade untill Feb on 06 model GTO's. Feb on 06's require an extra harness to connect gauges.
20-25 PSI is normal. Here are the specs from the factory service manual: oil pressure min HOT- 6 PSI @1000RPM, 18PSI @2000RPM, 24PSI @ 4000RPM. Hope this helps.
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69 GTO Judge
69 Firebird Trans Am clone
76 Trans Am 400 4spd.
06 GTO M6 18's red/red - 1 OF 188.
09.5 G8 GT Stryker blue met. premium with sport pkg.
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