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Guys - Mike just did a bang up job on my 2011 M3. It makes a huuuuuuge difference. Any one of them isn't a huge difference by itself, but all them added together makes for a clean, annoyance-free driving experience. This is how BMW should have rolled it off the line. He did about 10 different coding changes and it took about a half hour. The gong is gone, the "Accept" is gone, the seatbelt warnings, speed is now accurate etc... Worth every penny. Highly recommended.
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