I'm not sure if I want to use the flex pipe for the tubing, thinking of air resistance and all.... But is there anything else I could use that would fit as well, but not cost a fortune? To get just the piping off most performance places online is $10 cheaper then buying the whole CAI! My JWI cost $130, if I had known at the time that I could get CAI for $200, or even now $160, instead of the ~$250, I would have, but now I can't go back. And besides, the JWI has about 2x the area of the K&N, has a lower sound under full WOT, and feels slightly more responsive. So I want to make the CAI with that... only prob is making the tubing :S
Any ideas(besides buying the pricey CAI, and wasting the $200 on the new pop filters that got sent to me)?

 

You could buy the whole CAI and then sell the filter to someone interested in having a pop charger style intake. I was going to check the PR catalog, but I can't find it in my room.

But, I know for a fact that WSP's CAI is $155, so you could buy that and make some of it back selling the filter.