I personally couldnt get the Ultimate to work for the life of me. The person I sold it to claimed like low 11 time slips with my unit right after I sold it.
A few others couldnt get it to work either and did the same thing I did and swapped to the Blue.
Deff get alot of info before taking the plunge.
You will need the injection harness that is a supplment for certain 6cyl motors from my words with Greddy also.