AP0086 Fuel Pressure Regulator Kit "Blue Spring Kit"

AP0086 Fuel Pressure Regulator Kit "Blue Spring Kit"

2003-2007 6.0L Ford Powerstroke

3C3Z-9T517-AG

Probably the least expensive upgrade you can make on your 6.0L is to upgrade to the updated spring, sometimes called the "Blue Spring Update" using this kit from Alliant to help maintain adequate fuel pressure.