Pack a set of larger sized 2-5/8in. mechanical gauges in your street machine! Auto gage(R) puts the power of performance in your dash with these bold 270deg in.full sweepin. instruments, giving you maximum visibility under the most demanding conditions. All of the individual gauges include an optional chrome plated bezel that snaps on to add sparkle if desired. The Boost-Vac/ Pressure gauge ranges from 30 In. Hg.-Vacuum/20 p.s.i.-Pressure. Includes 6 foot nylon tubing, 1/8in. and 1/4in. NPT fittings.