No arguments on the shroud at all... I just don't see how without cutting the side of the fan off. There is no room to move it back & add one under it.

I was thinking of going to 2 smaller fans, one high & one low. But all of the smaller fans I find would be less CFM that the one I have now, even paired up. On summit, the twin fan kits with a shroud are all 4.5" thick.