Programmable ECU WILL BE Needed. dont listen to the special people who say it will eventually run by using a inventory ECU because it wont. certain you bodge it and get it functioning good at Vast Open Throttle but it will eventually idle like shit and be an entire pig https://beauxrgcu.mybjjblog.com/the-smart-trick-of-4age-20v-itbs-that-nobody-is-discussing-47240578