Thanks for all the replies, I have a AFR guage, oil pressure guage and boost guage that I will wire in before its finished, I'm currently driving an EP3 type r as a daily, but will more than likely end up driving the starlet full time when it's done (so won't be driving it like I've stolen it, atleast not all the time) Everything fuel wise -injectors and fuel pump etc is all still standard. So tbh I can run the setup I am currently for the running in period (with an AFR guage etc) then when it comes to afterwards, it'd be best to get an ecu for a proper map? Where are the best places to ge