Fuel Pressure Regulator Blue Spring Upgrade Kit 03-07 Ford 6.0L Powerstroke OEM Duramax If you are wanting to

If you are wanting to keep your LS Engine on the road for the long haul

These are an exchange program but you can avoid the up front core charge by sending your cores in first

Sold as a set of 12

Conical Spring Design

XDP's HD Gear Reduction Starters feature a more efficient motor that is faster and draws less amperage

Fuel Pressure Regulator Blue Spring Upgrade Kit 03-07 Ford 6.0L Powerstroke OEM Duramax If you are wanting toIncrease the fuel pressure in your 2003 2007 Ford 6. 0L Powerstroke with the Ford OE Fuel Pressure Regulator Blue Spring Upgrade Kit. Designed as a direct replacement for the factory components, the Blue Spring Kit Upgrade is a must have on all 6. 0L Powerstroke trucks. The elevated pressures from the Ford OE upgraded regulator increase overall performance, driveability, and also help to prevent damage to your injectors, while increasing longevity of