GlowShift’s Tinted 7 Color Series 45 PSI Boost/Vacuum Gauge was made for anyone with a turbo in their car that’s running on increased horsepower and high boost pressure. This 2-1/16” (52mm) mechanically operated turbo boost gauge will monitor your vehicle’s boost and vacuum levels from -30 inHG to 45 PSI. The Tinted 7 Color Gauge Series features a black gauge face, magnified tinted lens and illuminated red needle that sweeps 270°. Choose from 7 ultra-bright solid color modes for the analog display. Each gauge also comes with a 6’ Black Silicone Vacuum Hose, 1/8” T-Fitting with Hose Clamps, and Mounting Hardware. GlowShift provides installation instructions and free lifetime tech support as part of every purchase.