Fuel Pressure Regulator Price: Please Call Us For Pricing Description: Adjustable Fuel Pressure Regulator can provide precise consistent boost as much as twice of the stock fuel flow. From your delicate engine tuning, the fuel pressure adjustment can boost from 0 to 100 psi, or as much as your fuel pump could sustain. Made by aluminum, light weight, long lasting. Package comes with all hard wares and hoses Universal fitting, fits any car. Please install professionally.