The stock Supra JDM fuel system (and the JDM smaller fuel pump) will support between 300-400bhp depending upon a number of factors. The USA/UK/European Spec Supra fuel system (and the much Larger fuel pump) will support between 400-550bhp depending on a number of factors. When moving beyond this HP range we recommend an upgraded fuel system. We have taken our time and put together a kit that will flow enough fuel for over 700 rwhp. This kit is designed around the PROVEN twin Supra fuel pump (in-tank) setup. We are utilizing high end parts in an all in one package price for your supra with twin end feeds and a single center return for maximum efficiency and reliablity. Included are the following item's: Complete Kit: Fuel Rail, Injectors x 6 (complete) Aeroquip Fittings Aeromotive Boost Fuel Pressure Regulator (FPR) Braided lines and Aeroquip fittings Additional in-tank high power fuel Pump (couple with your existing pump) Twin in-tank fuel pump kit All connectors, pre-cut wiring, instructions & Relay Please Note: We can also offer you -8 and -10 fuel lines and E85 compleint fuel system rangin from 800-2000bhp!!! Please get in touch with us for a quote.