This Sinister Diesel Regulated Fuel Return Kit is a great upgrade for your 1999 - 2003 Ford with a 6.0L Powerstroke engine. It's made of CNC machined billet aluminum parts and stainless steel braided fuel lines with nickel - plated fittings. The kit comes with an adjustable regulator and a fuel pressure gauge. You can easily adjust the pressure to keep a steady fuel supply, which helps extend the life of your injectors. It replaces the factory fuel filter bowl with a 10 - Micron filter. You can upgrade to high - flow fuel lines from the filter to the engine and use a 6 - micron canister - style fuel filter that fits right into your truck's factory fuel lines. The filter block mount has a hinge system, making it easy to replace the fuel filter and giving your engine a clean, upgraded look. Part Number: SD - FUELREG - 7.3. Features include billet aluminum and stainless - steel construction, CNC precision machining, better filtration efficiency, and it comes with a six - micron fuel filter, Sinister fuel filter block, all - new high - flow fuel lines, adjustable fuel regulator, oil - filled fuel pressure gauge, retaining clips, and a protective cover for braided lines. A 3/8 - inch quick - disconnect tool is required for installation.

Using this fuel return kit is easy. First, gather all the parts included in the kit and a 3/8 - inch quick - disconnect tool. Then, carefully remove the factory fuel filter bowl and replace it with the components from this kit. Connect the high - flow fuel lines to the engine and install the 6 - micron fuel filter. Adjust the fuel pressure using the adjustable regulator according to your needs with the help of the fuel pressure gauge. When it comes to maintenance, regularly check the fuel filter. Since the filter block mount has a hinge system, you can easily open it and replace the filter. Keep an eye on the fuel pressure gauge to ensure the pressure remains stable. If you notice any leaks in the stainless - steel braided fuel lines or the nickel - plated fittings, check the retaining clips and make sure they are properly tightened. And always follow the safety procedures when working with fuel systems.