Mods: Hoping to create a sticky discussing ECU's and ECU tuning options for CE's as the info is very scattered. Perhaps focusing on the 4G93 for a start. Eg: Which ECU's can be re-flashed? Re-tuning the factory plastic box ECU, software, limitations, cost, complexity, skilled tuners, dynoing, turbo conversion friendly?... ECU swaps such as flashed EVO ECU conversion, difficulty, approx cost etc... Adaptronic vs.... Would be great to have centralised info and discussion.