Just ordered a set for my S. I've always liked these filters. $80.00 a piece at Fabspeed.com (probably slightly cheaper somwhere but I didn't feel like searching all day). Just wanted to let you guys know they'e available in case you weren't aware.

 

I had mine around 5 months ago, and i still didnt install them hehe. Just waiting till i get my exhaust!! Hopefully that will happen this monday