Quote:
Originally Posted by turbobaja  Only difference for M engine is the cams. Changing those for turbo anyway. My Schrick's were nearing 800$ so don't waste money. I'm actually looking around here to get a 2.8 and prep it to swap out my S52 and add boost.
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This isn't true. Cams, Bore size, and crankshaft are all different between a M5x and S5x motors. (The M cars motors are S5x's, the 325i for examples had M5x's)