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BMW X5 40i tuning-Dinan!
Just spoke with Dinan on the phone which is arguably one of the most reputable BMW tuners. They told me that they are looking at the B58 engine on the 340i and then X3 40i and then X5 40i. Long story short the estimate was that some time early next year they will be releasing a tune. I want to go with Dinan, but don't know if I want to wait that long. It doesn't seem that there are any flash tunes available yet only piggback tunes. Has anyone on here tuned their X5 40i?
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