thank you for your reply! the donor car is model year 1994...OBD1 with coilpack,is right? i've not seen yet the car because i bought it on internet and i couldn't see the throttle body as is written in the very useful guide on this forum... the matter is that i would like a bit more of a stage 2,but on the kinetic website the supply stage 3 and4 only for OBD2 engine management...what is the reason?