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0311htp Frugal02 Z

I had experienced pressure reading fluctuations with other regulators, and to the best of my knowledge, the little disk that comes with the TPIS unit seems to cure that, as our pressure was rock solid and never moved unknowingly.
1989 Pontiac Firebird Formula TPI Head Work - Rocking and Rolling

 I had experienced pressure reading fluctuations with other regulators, and to the best of my knowledge, the little disk that comes with the TPIS unit seems to cure that, as our pressure was rock solid and never moved unknowingly.  View Related Article

 

 

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