kind of a stupid question (searched)

[MOtown A4]

where can i find a filter to go on my SAI

[BLK_A4]

Haha thats funny i just got back from auto zone to buy a cheap crappy one. Search breather filter and you should be able to find them. You can also go to auto zone, pep boys ext.... make sure you get one that fits pretty good if you try to make it fit i with some kind of rubber flange or anything it can get sucked into you SAI and throw a code. Thats what happened to me kind of embarrassing.

[Castro27]

yea a lot of times the cheap ones from autozone or where ever are too small. That happened to me... obviously returned it.

[GetBoosted84]

I have a cheapy one from Pep Boys on there now.

[geeky]

Cheapy from Schucks.