AEM X-Series Wideband UEGO AFR Controller Gauge

AEM X-Series wideband UEGO air/fuel ratio controller gauge - in an independent test the fastest-responding wideband AFR controller versus 17 competitors. Patented X-Digital technology reduces sensor deadtime for safer, more accurate tuning and feedback control. Auto-detects AEM FAE or Bosch LSU 4.9 sensors (factory-calibrated, no free-air calibration required), with a user-configurable AFR/Lambda/O2% display in a 52mm housing. AEMnet CAN, 0-5V and RS232 outputs for logging and daisy-chaining up to 16 cylinders. Black bezel/faceplate included.

Specifications

Documents: Installation Instructions (PDF)

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy