Be sure you replace the vacuum-controlled valve mounted above the exhaust headers. Failure of this valve is most often the cause of air pump...
What year 328i?
I need a bit of help from fellow E36 M3 owners. What is the correct orientation (o'clock position) of the knock sensor ("ping detector" in...
Hold a K&N up to the light - see those bright spots? Those are gaps in the filter medium - do you wonder if dirt will pass thru them? I have no...
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