This thread takes me back to when I first got my 135i and got the beta version of the N55 Stage 1 for that car. I'll never forget the first time I put my foot down in the middle of 2nd gear.
If anyone's on the fence about a beta tune, I can tell you Terry's idea of a beta is more polished than most peoples' final products. I had the Stage 1 beta on my car for ~15,000 miles and then went to Stage 2 and never had a single problem or even a check engine light.
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