AEM X-Series OBDII Wideband UEGO AFR Controller Gauge

AEM X-Series OBDII wideband UEGO AFR controller gauge, the fastest-responding wideband in an independent test against 17 competitors. Patented X-Digital technology gives accurate AFR for safe tuning of rich/lean conditions. Includes a Bosch 4.9 LSU sensor; 0-5V and RS232 outputs plus AEMnet CAN for daisy-chaining up to 16 cylinders, and OBDII CAN output for 2008-up vehicles. Displays AFR, Lambda or O2% via face buttons. 52mm (2-1/16in) housing, black bezel and dual-faced black faceplate (silver/white sold separately, PN 30-0300-ACC).

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