another shroud with a differnet electric fan and a new chip which turns on the aux fan sooner. I just recieved it last night, and i'm going to put it in this weekend. The original fan was not flowing the amount of cfm it was originally supposed to..i believe that was one of the major problems. i'll definatly keep everyone posted as to if it solves my problems completely or not. i was simply praising Ash for customer support and making sure in the end his stuff works