[2012-1822]

Originally Posted by Comrando

K&N has a filter to fit the stock air box.

http://www.knfilters.com/search/prod...x?prod=33-2434

Another that Jac-Fab sells:
http://jacfab.com/products/camaro-pr...rop-in-filter/

That's what I was going to say

Originally Posted by td195f

I was at Watkins Glen last weekend...
stock airbox...

If it's good enough for the GS Camaros and you're not concerned about the cooler appearance of an aftermarket CAI stick with the stock airbox and get a permanent element filter to put in the stock box.

I don't know about other motors, but there are repeated dyno pulls showing the difference cold air intake makes on the ZL1.