Originally Posted by Dark_Knight_335
Nice. Wonder if it had to do with different N55 roms (do some of us have different ones? It's the same engine, no?)
ROMs are simply how BMW differs each car based on features. You and I might have identical cars except maybe I have a heated steering wheel and you don't. That small difference can mean that you and I have different ROMs. I know that seems like a really vague explanation, and it is pretty simplified, but it really is just something on the ECU that differentiates the BMWs based on their features.