I just found a diesel shop in South Houston P.S.P Power Stroke Performance. Honest and straight to the point. From what i can tell two owners Art and Richard come from a 25 year background with ford motor company. I found these guys searching a Craigslist Houston add for used injectors. I bought eight injectors installed for $700.00 truck runs perfect!!!!! The shop look busy that was a good sign, pspdiesel.com good web design overall really good place for any powerstroke. I've called them several times for other misc bull***** and Art has taken care of me. Leaving his number 713-359-8615 good set of guys the prices are good.