recommend original evo 1,2 or 3 ecu. i think you need to change the air flow sensor as well. did this before many years ago. i cant recall much for it has been years since i sold off that car. all i can say, cheap way to have the extra ummph!
As the title of this thread, any recommend on the shop that can refurbish and change the air-cond for RX7? I've just bought my 1st RX7 FD3S recently, and i'm trying to refurbish the interior and change the air-cond...