Originally Posted by s6 4rings

I thought about the K&N drop in, head in for 10 years in my Audi, didnt wanna wait for it shipped.

Originally Posted by flektone

go oem. you risk trouble with your car when you clean a k&n and put the oil on it.

Originally Posted by Shahryar

I put some notes and pictures from when I finally got around to changing my air filter and cabin air filter earlier this year in my '08 IS 350:
http://shahryar.net/2010/05/31/chang...y-2008-is-350/
http://shahryar.net/2010/07/12/blitz...-obstructions/

Both filters were changed a year and a half-ish after I bought the car (The car was bought new in Jan 2009). I went over on my mileage too, both filters were done when the car was in the 25k range

They're both blitz filters so I'm trying to figure out best way of reusing and when to do it. I know the cabin air filter for sure is reusable, not sure about the air filter though. I'm at almost 34k miles now