If your engine is not running properly, the fuel delivery system may be at fault, and the Accel fuel pressure gauge may be the solution. An internal combustion engine is more than just an intake, the block, and the head. There is a complex series of regulatory and monitoring devices designed to keep your engine running within the precise tolerances of design. This is especially critical on modern, fuel-injected engines. You always want to be certain that you have the most exacting monitoring gauges installed, such as the Accel fuel pressure gauge. The Accel fuel pressure gauge is a critical component, for without it, your fuel pressure regulator cannot function properly. The Accel fuel pressure gauge comes with one of the leading names in engine monitoring and performance. For ever 25 years, Accel has been an industry leader in the development of high end, performance-oriented engine accessories. With an Accel fuel pressure gauge installed, you can be certain that your fuel pressure regulator will be running at peak efficiency. To ensure maximum performance and control, consider installing an Accel fuel pressure regulator as well. This combination is one of the best ways to keep your engine running smoothly and powerfully. All of us certainly deserve professional sales help while buying quality car or truck parts. So of course we've established an always-online information and support desk to answer your needs. To sweeten the deal, we provide 100% free shipping for every order $50 and higher. If you spot a better price somewhere else, tell us - we will meet or beat any advertised price for auto parts.