Taking only 30 minutes to install the new updated Ford "Blue Spring" will increase your fuel pressure back up to where it should be from the factory. Most 6.0's see an increase of 8-10 psi of fuel pressure. The added fuel pressure will help keep the injectors from out flowing the stock fuel pump, meaning no air in the injectors, and an injector that will live much longer. Most trucks will actually quite down a little at idle, rev up a lot quicker and with the added fuel pressure, a little quicker spool up on the turbo. The kit does include all the O-Rings and hard parts to install the blue spring kit. In most cases the cover isn't required and we recommend the less expensive kit.