just bought a new air filter, readon www.a4mods.comon how to install it... so im just wondering if im gonna notice that its there or not? is there gonna be any change in the performance of the car? 2002 a4 1.8T Quattro

 

an engine is basically an air pump, not that you got rid of your less restrictive stock air box you'll be taking in more air, youll notice it but to make the most of it you might want an exhaust upgrade aswell to help let that added air out easier

 

You might want to read around the forum about the problems that the K&N's cause.

It made my CEL come on a day after i installed it. I took it out the next day after i read about it causing the MAF's to go bad. I believe the stock filters are perfectly fine.

I've been thinking about trying an ITG filter though...

 

K&N Drop Ins are bad?

I've heard nothing but good about them...

 

K&N air filters have oil on them. This normally isn't a problem, but the MAF sensor on Audis is so sloe to the filter that the oil from the filter gets on the sensor causes it to go bad. You can clean the sensor to fix it. You can use a K&N, but make sure to wipe it down with an absorbent cloth or rags to get as much oil off as possible and you need to make sure it's completely dry before installing it.

 

i threw in the k&n filter... their may be a slight difference but its probably me still in love with my audi.. but when i got to my airbox there waslots of debris was in there even had to vacuum that sucker, i dont think its been touched in a while... how long after was the stock one supposed to be replaced??

 

audi says every 40K miles, or 60K kilometres. here's a link that shows all the audi recommended service intervals. http://www.bentleypublishers.com/tech/audi/

 

get the Aem filter u dont have to oil it any more and gives u less head trama with cleaning and getting the oil in ur MAF

 

i put in a K&N about a week ago...hasnt caused any problems yet. engine sounds a lil more throaty thats about it

 

AEM makes a drop-in filter for our cars?