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I haven't been too eager to get into the leakdown or compression for a few reasons. The owner has not mis-shifted (or hasn't admitted it? I'll ask more directly), the engine starts up hot or cold with no misfires, runs just fine everywhere else except 2500-3500. Past that it runs to redline with no hesitation. There has to be some sort of perfect storm going on in the midrange.
Dealer expertise. That's a new one I haven't heard.
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RRT
E92 335i/6MT with stuff and things
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