I have a phantom oil pressure and A/f that I bought last year that has just set in my a-pillar never to be hooked up. The oil pressure is going to come with a oil block adaptor (threads are metric on the adaptor, but threads are english on the sender.)
They both light but other than that I have no clue, was told when I bought them they worked fine. The A/f ratio gauge requires a wideband oxygen sensor.
Prices:
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oil pressure gauge with sender and filter adaptor: $70 (gauge was $50 and adaptor was $55 when I bought it)
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A/F ratio gauge: $45
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3-gauge pillar $75
I have the pillar painted black around where the gauges go to give it a gauge pod look, you can sand it if you dont like it.
Buyer pays shipping of 6 dollars, even if you buy both or just one. These are still in my a-pillar but will soon be coming out later in the week.
Thanks