Want to monitor your cars Air/Fuel ratio to make sure your engines in good running shape? Then the Air/Fuel Ratio gauge from AEM is what you need !
These used to cost $219.99, and they are now only $199.99 ! This gives you a digital Air/Fuel ratio gauge that has black, white and silver faces, along with black and silver bezels so you can create the exact combination you want !
Air fuel ratios are displayed from 10:1 (FAT rich) to as high as 17:1 (super lean) and its easily read due to the bright, large digital display.
More information and pictures here: