i have an 01 a4 and was wondering what would be the best air filter set up Thanks

 

1.8t or 2.8? If 2.8 look for a CAI somewhere and stop there. If 1.8t then get a k and n or other high flow oem panel filter and do this mod: http://www.europeanspeed.com/stage2.htm . DOnt cut the tube like they say.

 

id do K&N

 

I have a K&N with a custom Airbox mod and I <3 it

 

Yep mod the box and a K&N

 

Do those K&N filters take any maintenance? Is the installation as easy as taking the old one out and putting the new one in? lol

 

yep it drop in replacement.

 

You really aren't going to see much of a gain with the K&N filter. Just be careful not to over oil the media or you might ruin your MAF sensor.

 

why does it require oil? what happens if you just dont oil it?

 

This was already stated in a previous post, but the reason for oiling a K&N filter is because it helps trap particles much better than using a stock paper filter, so the air stays cleaner. If you over do it when re-oiling the filter, you WILL screw up the MAF sensor. I did that on my previous car with a Volant intake. Just clean it, let dry, then re-oil but not to the point where its completely saturated.