Review on 💪 Enhanced Performance: Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing for 2003-2007 Ford Powerstroke 6.0L - Fuel Regulator Upgrade for Improved Fuel Efficiency by Walter Day

Good product, fits well and looks good. Wise advice, check your fuel pressure after fitting this as mine wasn't set from the factory. I set the gauge to 100psi when I put this new adjustable regulator on and when I ran it the gauge clicked. But I stepped back a bit and now everything is perfect. It's tricky to get to the upper radiator hose on the go, but to increase and decrease the pressure, simply turn the adjusting screw and then secure with a locknut.