How do you get the best performance injectors? Start with the highest quality reman box Alliant injector with all the latest updates. Replacement injectors just to get you back running like new. Why not upgrade to Performance 6.0 Injectors and give your truck the pulling power it deserves? All of our injectors start their life as updated OEM quality replacements, so you know that you get the most up to date and best injectors available for your 2003-2007 6.0 Powerstroke.