1. sjt47y

    ECU question

    Hi! I have looking into ECUs recently, possibly to have a go at mapping myself. I have shortlisted the ECU i would like to decipher, have you guys heard of Proefi Ecu? Seems to be doing wonders to the supras and 350Zs. I have done some readups on the haltechs, nistunes, wolfems etc but I...