Features 1、This liquid filled pressure gauge kit allows for accurately measuring fuel pressure 2、Designed to maintain the optimal fuel rail pressure for high performance/turbocharged engine 3、It can delivers vehicles' highest performance, with long life and highly reliable operation 4、A proper fuel pressure is critical at full throttle to prevent lean conditions 5、Recommended for use when you install a fuel pressure regulator, turbo kit or supercharger for a complete, accurate fuel delivery tuning system Specifications: Description: This fuel pressure gauge kit can provide you a way of more accurate reading, because the liquid filled so the needle won't vibrate. Features: This liquid filled pressure gauge kit allows for accurately measuring fuel pressure. Designed to maintain the optimal fuel rail pressure for high performance/turbocharged engine. It can delivers vehicles' highest performance, with long life and highly reliable operation. A proper fuel pressure is critical at full throttle to prevent lean conditions. Recommended for use when you install a fuel pressure regulator, turbo kit or supercharger for a complete, accurate fuel delivery tuning system. Comes with fitting for easy installation, directly mount on top of your existing fuel filter. Specifications: Material: Aluminum Color: Red, Blue, Black (optional) Size: 4.7 * 5.5 * 5.5cm/1.9 * 2.2 * 2.2in Package Weight: approx.160g Fitment: Universal Package List: 1 * Fuel Pressure Gauge Package List