AEM X-Series Digital Gauges – Wideband AFR, Boost, Oil/Fuel, OBD2, GPS, CAN For Sale

AEM X-Series Digital Gauges & Controllers – Complete Lineup in One Listing

Upgrade your build with AEM X-Series digital gauges and controllers, the go-to choice for serious tuners, turbo/supercharged builds, drift cars, drag cars, and high-performance street/track vehicles. This listing includes multiple AEM X-Series part numbers so you can choose the exact wideband, boost, pressure, OBD2, GPS, or CAN gauge your setup needs.

All X-Series gauges feature:

• 2-1/16\" (52mm) size – fits standard gauge pods

• Ultra-slim 0.825\" depth, 0.200\" cup depth – mount almost anywhere

• Huge center LED display (87% larger than older AEM gauges)

• 24-LED outer ring for at-a-glance status

• Auto-dimming, positive locking connectors

• Many models include AEMnet CAN bus and 0–5V analog output for data logging & ECU integration

Important: This is a multi-variant listing.
Select the exact part number/option you want from the drop-down menu.

30-0300 – X-Series Wideband UEGO AFR Gauge Kit (Black Bezel/Black Face)

• 8.5:1–18:1 AFR scale

• Fastest-responding wideband AFR gauge with patented X-Digital UEGO technology

• Works with gasoline, E85, ethanol, methanol, diesel, CNG, propane

• User-selectable AFR, Lambda, or O₂%

• 0–5V and CAN outputs for ECU/datalogger

Ideal for custom tuning on turbo, supercharged, and high-compression engines.

30-0300-ACC – X-Series Wideband AFR Gauge Silver Bezel/White Face Accessory

• Silver bezel + white dual AFR/Lambda faceplate

• Cosmetic upgrade kit for 30-0300 AFR gauge

• Perfect to match lighter interiors or custom dash layouts

30-0306 – X-Series Digital Boost Gauge 0–35 PSI / 2.5 BAR

• Reads vacuum to 35 PSI (–30 inHg to 35 PSI / –1 to 2.5 BAR)

• Black bezel, reversible black PSI/BAR face

• Peak/recall, programmable warnings

• CAN and 0–5V output for logging

Perfect for most single turbo, twin turbo, and supercharged builds.

30-0307 – X-Series Oil/Fuel/Fluid Pressure Gauge 0–150 PSI

• 0–150 PSI / 0–10 BAR pressure gauge

• Use for oil pressure, fuel pressure, or general fluid pressure

• Peak/recall, warnings, CAN + 0–5V output

Great for engine protection, fuel system monitoring, and serious data logging.

30-0308 – X-Series High Boost Pressure Gauge 0–60 PSI

• –30 inHg to 60 PSI / –1 to 4 BAR

• Designed for high-boost turbo setups

• Same X-Series display, warnings, and CAN/datalogging features

Ideal for big turbo, high-boost, drag and race builds.

30-0309 – X-Series 0–15 PSI Boost/Fuel Pressure Gauge

• 0–15 PSI range

• Perfect for low-boost supercharged or carbureted fuel pressure monitoring

• Full X-Series features: peak/recall, warnings, CAN/0–5V output

30-0310 – X-Series Inline Wideband AFR Controller (No Gauge)

• Compact, weather-resistant inline wideband UEGO controller

• Includes Bosch LSU 4.9 sensor

• 0–5V, RS232, and AEMnet CAN outputs

• Fastest-response standalone wideband for dyno, ECU, and datalogger use

Ideal when you don’t need an in-cabin gauge but want accurate AFR data.

30-0311 – X-Series OBDII Multi-Function Gauge

• Plugs into OBD2 port (2008+ vehicles)

• Displays OBDII channels such as RPM, IAT, boost, fuel pressure, speed, etc.*

• Reads and clears Diagnostic Trouble Codes (DTCs)

• Black bezel/black face, optional silver/white accessory available

*Channels available depend on vehicle manufacturer.

30-0312 – X-Series AEMnet CAN Bus Gauge

• Reads data channels from AEMnet-equipped devices

• Compatible with AEM Infinity, Series 2, EMS-4, X-Series Widebands, VDM, etc.

• User-selectable channels, US/Metric units, AFR/Lambda selection

One gauge to monitor multiple ECU data channels through CAN.

30-0313 – X-Series GPS Speedometer Gauge 0–160 MPH / 0–240 KPH

• Includes 10Hz GPS receiver (speed, heading, altitude)

• Can output vehicle speed to OE speedometer – no VSS needed

• Integrates with AEM Infinity ECU for track mapping

Great for track cars, off-road builds, swaps, and vehicles without a working VSS.

30-0334 – X-Series OBDII Wideband AFR Gauge Kit

• X-Series wideband with OBDII CAN-bus output

• Includes Bosch LSU 4.9 sensor

• Validated with HP Tuners, EFILive, DiabloSport, DashDaq, etc.

• Perfect for piggyback tuners and open-source ECU tuning via OBD2 stream

30-0352 – X-Series Tru-BoostX Boost Controller Gauge

• Boost gauge + electronic boost controller in one unit

• Built-in 80 PSIg MAP sensor (no extra sensor upgrade needed)

• Two boost levels + scramble boost mode

• Wastegate crack pressure control, overboost protection, alarms

• CAN output with multiple channels (boost, target, duty, etc.)

Perfect for high-boost turbo builds wanting simple, powerful in-gauge control.

Choose your exact AEM X-Series gauge or controller from the drop-down to match your build: wideband AFR, boost, oil/fuel pressure, OBD2 data, GPS speed, CAN bus display, or boost control – all in one listing.