If you drive a street machine that has a high powered turbo charged engine, then you need to monitor the air pressure as it moves into your engine. Professional drivers would never think of getting into racing car with a turbo charged engine without having an Autometer Air Press Gauge in the cockpit. An air pressure gauge lets you see how many PSI of air are being forced into your engine from the turbo charger. No matter what kind of car, truck, van or SUV you drive, if there is a turbo charged engine under your hood then there is an Autometer Air Press Gauge designed just for you and for your pride and you. There are several styles of gauges from which to choose. You can take your pick from white, black, silver, or carbon fiber face with a contrasting black or white color for the numbers. All go to 150 PSI and are accurate. Most also have a silver bezel and a red needle. Since they are illuminated, you can read the gauge at any time of day or night. Installation is easy and comes with everything you need. All Autometer Air Press Gauges include six feet of nylon tubing and all NPT adapter fittings. Add one to your dashboard today. Auto hobbyists want courteous sales assistance when looking at reliable car or truck parts. Thus, we've created a 24/7 information and support call bureau to assist you with your calls. Everybody hates to pay for shipping, that's why we always offer totally free shipping for every order greater than $50. If you spot a better price somewhere else, call us - we will meet or beat any price advertised elsewhere.