These gauges are some of the best-looking we've seen, and we liked them so much we installed them in our 2008 Subaru STI.  The Halo series gauges have a deeper face than other Prosport gauges, and a light-up halo ring around the outer edge. All are Premium-series (peak/hold/warning) gauges.  Control of the gauge is through the included wired touch pad, which can be mounted directly on the gauge, or remotely. Note! It's literally a "touch" pad, activated by even a slight touch. There is no physical button movement. You simply touch the pad on the side of the button.

Each gauge comes complete with all required sensors and wiring, gauge cup, mounting stand, hood, and installation/operating instructions.

The gauges are fully programmable using the touch pad. You can set one of three backlight colors -- blue, white, or amber/red; turn on or off the warning and button beep functions; select from six brightness levels for both day and night; and set the warning level.

This wideband gauge features a 5.0-volt output line you can use for tuning or datalogging purposes.

Wiring is the same as the Premium line, so if you want to upgrade from Prosport Premium gauges, it's as easy as unplugging your old gauge and plugging in the Halo gauge.

52mm gauge size.  Reads from 10.0:1 to 20.0:1.  Includes Bosch wideband oxygen sensor, weld-on bung, mounting cup, visor, quick-connect pigtail wiring, Prosport decal, and instructions.