I have a gently used autometer guage cup http://www.rpmoutlet.com/autoaccess.htm it's the first one on the left. it's black and fit's 1 2-1/16 inch (52mm) gauge. you can mount a boost gauge on the steering column (like the oem style impreza's if you'd like). new is about 20-25 bux. i will sell it for $10 OBO if anyone wants it