The updated “Blue Spring” kit restores factory fuel pressure, typically increasing it by 10 psi in 6.0L engines. This helps prevent injectors from outflowing the stock fuel pump, reducing air in the system and extending injector life. Benefits include quieter idle, faster throttle response, and quicker turbo spool-up. The kit includes all necessary O-rings and hard parts, along with a stronger billet aluminum housing to prevent leaks.

The updated “Blue Spring” kit easily installs in 30 minutes and increases fuel pressure, typically by 10 psi, restoring it to factory levels. This added pressure helps prevent injector issues, improves engine responsiveness, and enhances turbo spool-up. The kit includes O-rings and hard parts for rebuilding the fuel pressure housing, along with an adjustable screw for fine-tuning pressure, especially for larger injectors. It also features a durable billet aluminum housing to prevent leaks, replacing the weaker factory cast aluminum component.

Note: VIN not required. This item is compatible with trucks that have an engine build date after 1/1/05

A cracked fuel filter cap can cause air leaks, hard starting, fuel injector problems, and fuel leaks on hot engines. The Sinister Diesel Fuel Filter Cap solves these issues with a durable, corrosion-resistant design made from solid aluminum and includes a 1/8″ NPT port for fuel pressure testing.