AEM's legendary Digital Wideband O2 AFR UEGO Gauge is a wideband UEGO air/fuel ratio controller (AFR) and gauge in one. It unites accuracy, speed and control with an easy to read, digital LED display...

Accurate AFR data is critical when tuning an engine. Running rich (very low air/fuel ratio, excessive fuel) can cause a loss in power, while running too lean (very high air/fuel ratio, not enough...

AEM's Flex Fuel Ethanol Content Sensor Kits measure a vehicle's fuel ethanol content percentage and fuel temperature, which allows users with programmable engine management systems (capable of tuning...

AEM's Flex Fuel Ethanol Content Sensor Kits measure a vehicle's fuel ethanol content percentage and fuel temperature, which allows users with programmable engine management systems (capable of tuning...

A single large return orifice is designed to handle high rate flow pumps. The regulator has a 1:1 rising pressure rate for boosted applications, and it is alcohol fuel and race fuel compatible. The...

No welding equipment? No problem with AEM's No-Weld O2 Sensor Mounts. These mounts have an integrated bung that makes it easy to install a wideband UEGO air/fuel ratio sensor using just a drill and...

No welding equipment? No problem with AEM's No-Weld O2 Sensor Mounts. These mounts have an integrated bung that makes it easy to install a wideband UEGO air/fuel ratio sensor using just a drill and...

No welding equipment? No problem with AEM's No-Weld O2 Sensor Mounts. These mounts have an integrated bung that makes it easy to install a wideband UEGO air/fuel ratio sensor using just a drill and...

Replacement Power Harness for 30-0300 X-Series Wideband Gauge

Plug n Play when used with our Classic Series Wideband Gauge Part #30-4100

AEM's RTD-Type Temperature Sensor (PN 30-2052) is packed with features that deliver consistent measurement and long life. This AEM EGT Sensor features a closed-tip design that lasts longer than the...