This kit features a high volume 255 L/PH external inline EFI pump that will provide enough fuel delivery for up to 600 HP. Kit also includes fuel lines, fittings and two billet fuel filters and enough premium quality hose for an inlet and return line. The filters include a 100 micron pre-filter and a 30 micron post filter. Note that when using this pump a return line to the fuel tank is required. If you are forced induction, we recommend a boost referenced regulator.