I like my Active Autowerkes tune alot. I felt the difference immediately.
A lot of people like the Velos tune and great support from Omar.
and several are getting great results from JB4 (Burger tuning)
Check them out and compare ease of use, price and back end support.
A tune is a great thing... I don't know why anyone wouldn't get one immediately (I did)
Good luck!
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2020 X5M - Tanzanite II
2012 M3 - Alpine White
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