I have a 2006 E90. I was thinking of changing the air filter to a K&N Filtercharger. Is it worth it and if so how do you change it? What I mean is step-by-step instructions. Thanks
It's worth it if your main goal is to impress all your Honda-driving pals. Otherwise, no. It isn't worth a damn thing.
its not worth it, but all you really do is open up the filter housing, take the old one out, and drop the new one in.
As noted there are no performance gains despite ad claims to the contrary. The OE filter does an excellent job of cleaning the air and doesn't need to be periodically cleaned.
