The Fuel Return System - Basic for the Nissan 350Z and Infiniti G35 is a direct bolt-on kit that converts the current factory “return less” fuel system to a full return fuel system. The highly-engineered Fuel Return System - Basic is a great stepping stone for anyone who wants the reliability of a Fuel Return System on a budget. With the ability to support 450rwhp, this system is very similar to our prestigious Fuel Return System but utilizes the factory fuel rails (the Fuel Rail Return System comes with two Billet Fuel Rails and converts the factory fuel flow through each rail simultaneously).
One negative aspect of the factory return less system is that the factory fuel pressure regulator is installed in the fuel tank. The factory fuel pressure regulator does not allow fuel pressure adjustments and is incapable of holding consistent fuel pressure with most aftermarket fuel pumps. The factory fuel pressure regulator is also unable to add fuel pressure under boost.
This system is a must have for any forced induction supercharged or turbocharged vehicle and any big shot nitrous vehicles because the Fuel Return System removes the factory regulator's control of fuel pressure and replaces the control with a vacuum/boost sensitive adjustable fuel pressure regulator. This allows you to adjust both the level of base fuel pressure and increase fuel pressure under boost.