My truck is a 2003, with 275,000 miles and I have the original injectors. The truck runs great, but after doing some reading, I feel like I am living on borrowed time. A few questions, how many miles are other 3rd gen truck owners getting out of their injectors? If/when they go out, do you recommend replacing them with the stock injector, or would you go after market? I really am happy with the current HP of my truck, run a Smarty controller on level 3, don't need a race truck! I get pretty good fuel economy. Replace the fuel filter every 15K and also give it a fuel additive/injection cleaner every 15k.