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The Regulated Return Kit for the 03-07 6.0L Powerstroke Super Duty is an important part of the fuel system upgrade process. This kit eliminates the "dead-head" stock fuel rails and provides adjustable fuel pressure capability to the Powerstroke fuel system. This is done by tying the end of each fuel rail together through a Bypass Fuel Pressure Regulator. The Regulated Return Kit also includes replacement Fuel Feed Lines (from the fuel filter to the cylinder heads) that replace the stock lines and banjo bolts/check valves with larger high flow units.
The primary benefits of this kit are significantly increased fuel flow "through" the heads, ensuring that each fuel injector has adequate fuel quantity and pressure all the time. Additionally, any air "bubbles" that may develop in the fuel system can pass through the heads and out the regulators return port to the tank, instead of through the fuel injectors...resulting in increased injector life and less injector noise. If you are installing new injectors (stock or aftermarket), we HIGHLY RECOMMEND this kit to protect your investment!
Below are some of the key features of the Regulated Return Kits:
Will Clear Stock and Aftermarket Turbocharger Setups
No Interference With Intercooler Tubes!
Will fit BOTH Single and Dual Alternator Engines
EXCLUSIVE Custom Return Fitting with Integrated Fuel Filter Air Bleed
(Driven Diesel is the ORIGINATOR of the Custom Machined Filter Bowl Fitting!)
High Flow Banjo Bolts
NEW Ford Fuel Bowl Fitting O-Ring Included!
High Quality FueLab Bypass Fuel Pressure Regulator
12ga T-304 Stainless Steel Regulator Mounting Bracket
Liquid Filled Fuel Pressure Gauge (see special note below)
Custom CNC Bent S.S. Hard Lines and High Flow Banjo Fittings (NOT modified stock lines!)
High Quality S.S. Braided Teflon Fuel Lines with Protective Covering
Complete Kit with All Necessary Parts and Detailed Instructions
Special Long Handled 6mm Allen Tool Included!