| I have the exact same question and it that alright to put on my stock auto m3? As for gettin the aircharger instead of just the replacment filter, i would go with the aircharger, more acceleration and sounds sweet when layin on the gas. Also remember that the that K@N aircharger is illegal for on road use, doesnt really matter unless u live in a state where they inspect ur car. Anyway please help with my problem someone |