Description: This Universal Fuel Pressure Regulator can be used with turbo. Supercharged or normally aspirated EFI engines and is built to cope with the higher boost and fuel rail pressures required by performance engines. It allows adjustment and fine tuning of fuel pressure in order to supply the engine with more fuel. Avoid potential restrictions which can be detrimental to engine power output and acceleration. This item also works in conjunction with existing fuel regulator. Specification: Material: Aluminium Alloy Size:(Approx) 90x65mm/3.54x2.56 Inch Package Includes: 1 Piece Fuel Pressure Regulator 1 Piece Liquid Filled Gauge 4 Pieces Screws Note: Professional Installation is Highly Recommended