
Common 52mm (2 1/16 in) size for compatibly with other mounting solutions and easy installation even in small spaces.
HOW TO INSTALL AEM AIR FUEL RATIO GAUGE 2011 STI SERIAL
Serial data stream included for output of AFR (RS232).
Does not oscillate AFR like narrow band sensors. Can output AFR for gasoline, E85, ethanol, and methanol. User-programmable 0-5V analog output included for use with dataloggers or any engine management system. Integrated three-digit display reveals AFR or Lambda in real time on Digital versions. No free air calibration required - ever!. The sweeping LED design changes colors as AFR changes from rich to lean. Digital versions have a 24 color-coded LED display lights that provide immediate reference to your engine's Air/Fuel Ratio (AFR) or Lambda. Includes Bosch 4.9 LSU O2 sensor for optimum accuracy and reliability. It is meant for standalone use, and has a 0-5V output to use with data loggers and virtually any engine management system. This unit includes a gauge and controller in one. These units are the "single channel" version made for most vehicles where only a single channel is needed for accurate AFR readings. The unit's 52mm gauge housing fits in most gauge pods and can be remotely mounted virtually anywhere. If you're putting down a lot more power than stock, chances are you'll need to know your Air/Fuel Ratio to ensure your engine is running correctly. AEM Wideband UEGO AFR Gauges are among the best UEGO gauges on the market, and a MUST for customers who need accurate AFR (Air/Fuel Ratio) data.