The "Blue Spring" Fuel Pressure Regulator Repair Kit is an easy 30 minute install and will increase your fuel pressure back up to where it should be from the factory. But the difference with these kit is that you can adjust the actual fuel pressure using the adjuster screw. Therefor we can fine tune your truck to get the pressure right where you want it (normally 55-68psi). The added fuel pressure will help keep the injectors from out flowing the stock fuel pump, meaning no air in the injectors, and injectors 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.