? huh? I dont see how it is anything like nawarkk's design.
I'm using a 4" polished aluminum tube and I needed to double my amount of aluminum for the CAI box now going to use 2 signs and the PCM will be mounted inside the CAI box. The bottom of the box will be mounted and the top with be removable for access to the filter for cleaning
I do like nawarkk's design simple and to the point, but I like making things a little more difficult its not fun unless its difficult