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One of the guys who works for a company I use has a '11 N55 135i and we started chatting about the cars and what's done to them. I mentioned that I had done MHD S1 and how different (better) the car has felt since doing it.
Well after a quick round the block run and a few snaps and crackles from the exhaust he decided pretty quickly that he NEEEEEDS to do the tune. 10 minutes later he calls me and has already got the app, bought the license's and was asking for a tutorial haha
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