Man, this battle of the Nick's has created quite a few pages to this thread.(bicker) Dude...I want this MPI piggy back computer now! If I ready correctly, it controls air/fuel ratios, timing, boost...just about everything we need to keep our cars from stumbling, and it is about to be $575? I am all over it if it really does all that for that price. I was about to purchase a Greddy Profec B Spec II from my contact @ Greddy. If this computer controls it, with two different settings, and helps with the stumbling and makes the car run leaner, count me in! I am still afraid I won't know how to hook it up or properly calibrate it. However, if there is good support to help me work through that, put me down for one. I am in the works for selling some parts from my other car. Once those items are gone, I will have the funds for this MPI. Please email me or PM me with the breakdown I might have missed in the 20 some pages of this thread. I was trying to get the bottom line, but I think I lost it in all the arguments and confusion and resposts. Thank man, Nic (with no k) (wink)