What is the TSB # for the low power fix in OD on my truck. Going to DC on Thursday and I think that I want them to flash the ECM. I tow a 28ft. trailer and it could use more juice in OD. Do you think that I'm taking a risk letting them mess with My Trucks "Brain"? I hate this decision. The truck runs well but "lays down" a little in OD. I read that they sometimes also do an emmissions TSB at the same time here in Calif. Those of you that have done it, was it worth it? Chris