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AEM 52mm (35psi or 50psi) Boost Digital Gauge


AEM 52mm (35psi or 50psi) Boost Digital Gauge


AEM’s Digital Boost Display Gauges combine unsurpassed accuracy, speed and control with an easy-to-read digital LED interface that displays boost in 1 PSI increments, and a sweeping LED “needle” that lines the edge and moves as boost from 0 to up to 50 PSI. The boost gauge’s digital readout will automatically increase and decrease in intensity due to the built in ambient light sensing photocell.



Authorized Dealer


Quick Specs

  • Ideal for carbureted or EFI vehicles
  • Easy-to-install Plug & Play harness and sensor included
  • 24 green LED display lights provide immediate reference to monitored engine function
  • Three digit readout in center
  • Each gauge comes with interchangeable black/silver bezels and black/white faceplates
  • 0-5V analog output included for use with data loggers and virtually any engine management system
  • Auto-dimming gauge face and read out lighting
  • Brass sensor included
  • Standard 52mm (2-1/16”) gauge housing


  • 30-4406 displays boost from -30 – 35 PSI
  • 30-4408 displays boost from -30 – 50 PSI


Includes: Digital Boost Gauge, 50 or 75psia sensor, Wiring Harnesses, Silver and Black Bezels and Black and White Faceplates & Vacuum Hose


Additional Information

Weight 1.5 lbs
Dimensions 5.5 × 5.5 × 5.5 in
Boost Range

-30 – 35 PSI, -30 – 50 PSI


  • Universial


User Manual

User Manual 30-4406 35psi gauge

User Manual 30-4408 50psi gauge