the reason why rinagi said so because this topic has been discussed in detail somewhere in one of the threads earlier and the explanation, pros, cons and pricing has been listed there
if u have ample time, it is best for u and all newcomers to go through all the earlier threads rather than posing a "blind question"
Let's start a thread tht talk abt Turbo (kit), cams and ECU for all range of Evos!!! Hopefully members n frens tht hv done all this b4 do share some of their experience here ya!!!