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brentuning

  1. E60 M5 and E61 M5 Touring Discussion
    Hey guys I have 08 M5 and I just got my tuning software. I downloaded the file from my car .fpf and send the file to tuners to tune it. While I’m waiting for their answer I was thinking to try it my self so I made 5-10 copies of that file just in case something goes wrong so I can put it back...
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