Anyone done this to their 07 yet??

I have been looking at the service manual diagrams (EM section page 27) and it looks like I can just pull all the TB coolant lines and run a single line from the rear water outlet (F) to the heater pipe (E)

Any thoughts?

this is the same mod nearly everyone did on their LT1's including myself. There was no noticeable gain in hp. It was a very simple process on my firebird but on these cars I am doubting it is worth the trouble.

Yeah, I did it to all my previous cars too. I know little to no increase in HP, just getting bored due to the lack of performance parts available for the 07+.