AROSPEED® Adjustable Fuel regulator is a device installed onto the fuel rail or in-line with fuel lines, this units allows fine turning of fuel curve mechanically by increasing or decreasing fuel pressure to the fuel lines. Boost dictated to steady fuel pressure even under boost conditions resulting from forced induction. AROSPEED® Fuel Regulator TURBO is made out of billet alumimnium and comes with its own pressure gauge. It also features a twin diaphragm construction, making it suitable for turbocharged car. These Arospeed FPR's are rated for above 1.7 bar of boost making them suitable for high power turbocharged cars. The installation of performance fuel injectors or a high-flow fuel pump requires the use of an after market fuel pressure regulator to allow pressure adjustments while maintaining a stable base pressure. AROSPEED® adjustable fuel regulator can be used to maximise a standard fuel systems ability to cope with minor power modifications. PRODUCTS FEATURE & BENEFITS 1) Double layers NASA Grade 0.4mm Diaphragm handle turbo pressure 2) 100% tested every piece before shipping ensure NO LEAK! 3) Available 2 different pressure range for NA and Turbo Engines 4) Metallic gauges with clear raeding easy to adjust pressure