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  1. General BMW Discussions
    I drive a 2007 335i n54 e93. It is full bolt-on and currently running a MHD 2+ tune. So i was on my way to work one morning. I got off the freeway and it felt like i had ran over my engine. Turns out all six bolts on my crankshaft pulley had broke off . Now im left with trying to extract the...
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