Not to point out the obvious, but they are all limited electronically based on what options are selected when the car is built. I think you are either stuck with 130 or 155 depending on the tire and wheel options. If you really want to have some fun, get the Dinan Stage 2 and it will completely remove the electronic limitations. I'm considering it if I can ever go a whole tank of gas without having to head back to the service center. I wonder if anyone has ever tried putting the Stage 2 on their BMW loaner? After all, that is where I spend most of my time!
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