AEM 30-4406 Boost Gauge – Key Features & Functions
Wide Boost & Vacuum Range (-30 inHg to 35 PSI)
Covers full operating range:
- Vacuum for idle and diagnostics
- Boost for performance monitoring
- Ideal for turbocharged and supercharged builds
Because both sides of the gauge matter.
Digital LED Display
Modern and precise:
- Bright, easy-to-read digital numbers
- High visibility in all lighting conditions
- Quick-glance readability
No guessing needle positions—just exact data.
AEMS Digital Display Gauge offers unsurpassed accuracy and visibility. Each and every gauge includes 24 different color (red, green, yellow) LED lighting that fluctuate from green to yellow to red for fast reference to the parameter being measured, and a built-in E-digit display that reveals real-time operating conditions.
52mm (2-1/16″) Standard Size
Universal fitment:
- Compatible with most pods and gauge mounts
- Easy integration into existing setups
- Clean, professional installation
Standard size, no headaches.
Integrated Boost Sensor
Built-in accuracy:
- High-resolution pressure sensor included
- Fast response to boost changes
- Consistent and reliable readings
Because boost spikes don’t wait.
Peak Recall Function
Tracks performance data:
- Records maximum boost levels
- Useful for tuning and diagnostics
- Helps identify spikes or inconsistencies
Because what happened during that pull matters.
Programmable Warning Feature
Built-in protection:
- Set boost thresholds
- Visual alerts for overboost conditions
- Helps prevent engine damage
Because overboost isn’t a “maybe problem.”
AEMS Digital Display gauges feature a normal 52mm gauge housing that matches in such a lot gauge pods and may also be remotely mounted virtually anywhere. Each and every gauge includes interchangeable silver and black bezels and black and white faceplates to customise the look of your gauge—it is like having four gauge designs in one.
Why You Need This AEM 30-4406 Boost Gauge
If you’re running forced induction, this isn’t optional—it’s required.
The AEM 30-4406 Boost Gauge gives you:
- Accurate, real-time boost and vacuum monitoring
- Digital precision with easy readability
- Peak recall and warning alerts for safer tuning
- Reliable performance data for dialing in your setup
Because guessing boost pressure is how engines fail.
Ideal Applications
- Turbocharged builds
- Supercharged setups
- Performance street cars
- Track and drag builds
- Engine tuning setups
Final Verdict
The AEM 30-4406 Digital Boost Gauge is a must-have for any forced induction build.
It’s accurate, responsive, and gives you the data you need to keep your setup running strong—and safe.
Because boost is great… until it isn’t.


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