AEM Classic Series 0-150 PSI Oil Pressure Display Gauge - 30-4407 Nissan Silvia S14 Honda officially calls these the

Honda officially calls these the "First-2nd Select Spring" and "Fifth-Sixth Select Spring

they can be dangerous if flammable materials are used

It is a must for users who want highly accurate boost pressure readouts up to 60 PSI or 4 BAR in their high performance vehicle

Torque Capacity (ft/lbs): 490

AEM Classic Series 0-150 PSI Oil Pressure Display Gauge - 30-4407 Nissan Silvia S14 Honda officially calls these theAEM Digital Oil Pressure Gauges combine unsurpassed accuracy, speed and control with an easy to read digital LED interface that displays oil pressure in 1 PSI increments, and a sweeping LED "needle" that lines the edge and moves as oil pressure changes from 0 to 100. The oil pressure gauge's digital readout will automatically increase and decrease in intensity due to the built in ambient light sensing photocell. AEM's digital oil pressure gauges