thanks brian, that is what I was looking for. there is a benefit to having the tank inline with the system as opposed to just an overflow.

Just curious where did you relocated you IC pump to? was this necessary?

I was considering the LET HE (closest to stock appearance) but was wondering if the air damn can be reinstalled, how much hardware required?

But even with a new HE, I wanted to separate the IC and provide an overflow tank as a precaution (in case something overheated/broke, not concerned with aggressive driving, woody already proves this). So if I do the separation first I get the benefit and safety, and can always add a new HE later.