Your performance engine requires your being able to keep up with more than just RPMs in real time. Most vehicles do not come out of the factory with a fuel pressure gauge, and that's why Hypertech recommends one of their Hypertech Fuel Pressure Gauges for your performance vehicle. Hypertech's line of products specializes in the fine tuning adjustments you need to make to take your performance or racing vehicle to the next level, and they recognize the meticulousness required and the attention that has to be paid to every detail in your vehicle. Adjusting the fuel pressure usually requires special equipment, but it is a quick and easy way to tweak your engine to get more performance and power. Therefore, these gauges serve to deliver a very vital piece of information, as anyone with a performance tuned vehicle needs to be able to keep up with their fuel pressure in real time. Hypertech Fuel Pressure Gauges make this easy with their large, straightforward gauges layouts. The gauges register from 1-100 PSI, accommodating most performance vehicles. Hypertech Fuel Pressure Gauges are a snap to install, and in minutes will have you sitting that much more in control of your car and the power it is putting out. Our customers deserve world-class help while buying quality car or truck parts. Because you deserve that, we've established a 24-hour, 7 day a week customer support bureau to answer your requests. To sweeten the deal, you always get completely free shipping for each order at least $50. If you spot a better price somewhere else, tell us - we will meet or beat any advertised price for auto parts.