GSR Autosport announces the launch of a proper ECU flash tune for the 228i (N20) achieving approximately 50whp and 90wtq over stock. The dyno graph below is tune only on 91 octane
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GSR Autosport announces the launch of a proper ECU flash tune for the 228i (N20) achieving approximately 50whp and 90wtq over stock. The dyno graph below is tune only on 91 octane