Why wouldn't this work? Seems like a low budget way to get similar results than buying an over priced CAI.

Why not take this foam panel filter:
http://new.minimania.com/web/Item/NME2101/InvDetail.cfm



and do this modification:

https://www.northamericanmotoring.co...on-how-to.html

This should increase flow through restrictive stock box and filter. How much better flow can happen by spending another $200?

 

No reason why that shouldn't work -- as long as you make the holes on the right side of the filter!