AEM X Series AFR Boost Gauge Combo – Key Features & Functions
Wideband AFR Monitoring (X-Series)
The AFR gauge delivers:
- Highly accurate air/fuel ratio readings
- Fast-response wideband sensor
- Real-time tuning feedback
Because AFR is the difference between power and problems.
AEM Boost Gauge Combo Set of 2 – AFR AEM X Series Wideband & 15 PSI Boost/Air Fuel Ratio Gauge Kit
15 PSI Boost / Fuel Pressure Monitoring
Flexible monitoring capability:
- Tracks boost levels (turbo/supercharger)
- Can be configured for fuel pressure monitoring
- Critical for diagnosing performance issues
Because boost spikes and fuel drops don’t send warnings.
Keep your performance build dialed in and your engine secure with the AEM 2 digital temperature gauge Set, pairing the X-Series UEGO AFR AEM Wideband Sensor Controller Gauge with a 15 PSI Boost/Fuel Gauge.
Digital 52mm (2-1/16″) Display
Modern and precise:
- Bright LED readouts
- Easy visibility in all lighting conditions
- Clean, compact installation
No squinting at needles—just clear data.
Whether you’re tuning on the dyno, dialing in a street setup, or monitoring right through spirited driving, this AFR gauge kit delivers the accurate, real-time feedback serious drivers demand. The combination of AFR and boost/fuel pressure data offers you full visibility into your engine’s performance, helping prevent costly damage at the same time as maximizing power output.
High-Speed Data Output
Built for serious setups:
- 0-5V analog outputs for ECU/data logging
- AEMnet (CAN bus) compatibility
- Seamless integration with AEM systems
Because data isn’t just for looking—it’s for tuning.
Compact, High-Visibility Gauges with Pro-Level Features
At just 0.825” overall depth and 0.200” cup depth, these 2-1/16” (52mm) digital gauges for car mount almost anywhere, perfect for tight pods, custom panels, or factory dash placements. The X-Series’ oversized center LED and 24 green outer LEDs make at-a-glance readings effortless, at the same time as user-selectable threshold warnings keep you ahead of potential issues. Built-in auto-dimming wideband O2 sensor kit ensures the display is at all times easy to read, day or night.
Included Sensors & Complete Kit
Everything you need:
- Wideband O₂ sensor included
- Boost/fuel pressure sensor included
- Wiring and hardware for installation
No piecing together parts—this is ready to go.
Data You Can Believe, Integration You’ll Love
Each digital boost gauge offers 0-5V analog outputs and AEMnet CANbus capability, making it simple to feed accurate data to your engine management system or data logger. The Wideband AEM AFR gauge covers More than one fuel types, gasoline, ethanol, E85, and methanol, with gasoline AFR display values from 8.0:1 to 20.0:1 and Lambda from .55 to 2.00.
X-Series Fast Response Technology
Advanced performance:
- Faster refresh rate than traditional gauges
- Improved accuracy under load
- Smooth, consistent readings
Because fast engines need fast data.
Complete Kit, Able to Install
Everything you wish to have comes in the box, wiring, sensors, and mounting hardware, plus MAPerformance lanyards for that finishing touch. From weekend warriors to competitive builds, AEM performance electronics are engineered to deliver reliability, accuracy, and the data you wish to have to win.
Bonus Included
As if the gauges weren’t enough, this kit also includes MAPerformance lanyards—because nothing says “I take my build seriously” like repping the brand when you’re not behind the wheel.
Why You Need This AEM X Series AFR Boost Gauge Combo
If you’re tuning, boosting, or pushing power, this combo is essential.
The AEM X-Series Combo Kit gives you:
- Accurate AFR monitoring for safe tuning
- Boost or fuel pressure tracking for performance stability
- High-speed data output for advanced setups
- Complete, plug-and-play solution with sensors included
Because guessing your AFR or boost is how builds end early.
Ideal Applications
- Turbocharged builds
- Supercharged setups
- Standalone ECU systems
- Track and race cars
- High-performance street builds
Precision Monitoring for Performance Builds: This dual gauge kit includes an X-Series Wideband AFR gauge and a 15 PSI Boost/Fuel Pressure gauge, giving you accurate, real-time data for peak performance
Compact, Easy-to-Mount Design: At just 0.825” overall depth, this 52mm boost gauge combo mounts virtually anywhere, even in tight pods; the low-profile design blends seamlessly into your cockpit
Advanced Display & Data Output: With a larger center LED, 24 outer LEDs, and user-selectable warnings, the AFR gauge Wideband kit delivers fast, easy-to-read updates, plus analog and CANbus outputs for EMS or data loggers
Wideband AFR Sensor for More than one Fuels: Whether you’re running pump gas, ethanol, or methanol, this Wideband gauge displays precise readings across More than one fuel types, so you’ll tune with confidence
All-in-One Kit with Extras: Complete with wiring, sensors, and MAPerformance lanyards, this fuel pressure gauge kit includes everything you wish to have for installation, just mount, connect, and start monitoring
Final Verdict
The AEM X-Series Wideband AFR & Boost/Fuel Pressure Combo Set is a must-have for anyone serious about performance and engine safety.
It delivers the data you need, the accuracy you trust, and the control your build demands.
Because power is great—but controlled power is what lasts.





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