The factory flashed ECU on the Bolt is limited in a number of ways. Altering the ECU by having a company with the needed software flash it can provide performance gains, less popping and banging on deceleration and acceleration, remove high RPM timing retarder, remove fuel cut, reduce engine braking on deceleration, reduced running temp, raise rev limiter, adjust timing, and more. Flashing the ECU usually carries with it the fact that it doesn’t comply with warranty, safety, or emissions regulations.
Known Providers #
Here are the known providers of ECU flashes and the countries they service.