Quote:
Originally Posted by 335stoner
I wonder if it kills off some low end torque??
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BMW had engineers sitting at CAD terminals doing mid-boggling math problems to come up with the exact size, shape and texture of the intake. Probably a couple other parts too. Were swirl flaps on the table at that point in time? That's the only place you're gonna answer that question, apart from a controlled before/after comparo. That would mean cleaning before in both cases.