AEM Boost Guage 06 STi
Awesome that it cvomes with vacuum line and Fitting which helps install. At idle gauge is in In. Hg which takes some getting used to but overall great product. Also cool that it comes with a white cover plate as well if you want to switch up the look of your gauge pod. Mounted sensor at one of the brake hardline mounting brackets in back of firewall tucked and out of the way