AEM’s 0-4.1BAR Boost Gauge unites unsurpassed accuracy, speed and control with an easy to read, analog interface. The AEM analog gauge also offer a 0-5v analog output for use with data loggers and virtually any engine management system, such as the AEM EMS or FIC.


249.99 TAX included

SKU: 30-5137M
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The AEM 4.1 BAR Boost gauge gives those running a high amount boost an accurate and easy to read analog gauge solution for their vehicle. The 320 degrees of resolution makes it easy to see when there’s a drop of even few points of BAR, making it easy for you to quickly see what is going on. The lightning fast needle movement is a result of a precision high speed electronic stepper motor making it one of the fastest and most accurate gauges available.

A 100PSIG brass sensor gives the gauge its accuracy. The backlighting is user adjustable to 7 colors, allowing users to easily match the AEM Boost Gauge to most factory gauge clusters. Each gauge comes with interchangeable black & silver bezels and black and white gauge faceplates for multiple color combinations.


  • Ideal for carbureted or EFI vehicles
  • Adjustable backlighting via a dial on the back of the gauge
  • Includes black and silver interchangeable bezels and white and black faceplates
  • 320 degree viewing area for unsurpassed resolution
  • Boost gauge includes high quality sensor – everything you need to install it!
  • Easy-to-install harness
  • 0-5v analog output included for use with data loggers and virtually any engine management system
  • Electronic stepper motor needle
  • Standard 52mm (2-1/16”) gauge housing
  • 30-5137M displays 0 – 4.1 BAR of boost
  • 30-5144 displays 0-15 PSI of
  • 30-5132 displays -30 – 35 PSI of boost
  • 20-5137 displays 0 – 60 PSI of boost

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