I have an injen cold air intake and was wondering how often do you all clean your filters? p.s the brand of intake doesnt matter.

 

K&N filters say every 50-100k miles but I just used the rule..if it looks dirty, it must need cleaning.

Here is the link if you want to see

http://www.knfilters.com/clningins.htm

S13/SR20 SOLD!
DG G35 Coupe
Boost is an addiction *sigh*

 

I have the Injen CAI and I find that the side exposed to the outside got horribly dirty after a little rain on the highway. I was worried about it because it really was filthy especially after getting behind some trucks that spewed spray everywhere. I tried to clean it, but it was really difficult, and I was not able to remove the filter. I ran water down in it to try dislodge dirt from the unaffected side, then used the cleaning kit from k an n.
Pain in the @$$.
let me know what you think

 

I would clean the Injen every 10-12k miles.