for those of you who dont know my situation, i bought a (new to me) 06 psd 6.0 and had a bad stc valve and some dumby plugs. now the dealer is letting me know that the truck is still running rough and it might need a new ficm and injector #7. i told them just to leave that way and ill fix the rest mysef since i was already paying 1600-1700. i know that i can get my ficm repaired with a "atlas 40" tune for cheap with ficmrepair.com but where can i get a injector for cheap? is the injector a simple swap? thanks in advanced!