Just looking at it for the LS4, and it looks like it would fit with no problem for the 3.9 and 3.5. What you guys think of it?

 

I think if it works go for it! We all know how restrictive the stock intake is.

 

Yep yep, it's fairly cheap also compared to all the other intakes, and from what I hear FWI are really good.

 

Hmm, are you thinking about getting it? Or were you just looking at it? I would really like to get some sort of intake, be it FWI or CAI, but don't know of many options yet. Let us know if you do end up getting it.