I can let you know Thursday. I am getting the ported TB and intake as well as a dyno tune from Jeremy Wednesday.
The more I read the more I am looking forward to it.
Excellent! I have the same model as you minus the Z51, but now sporting 3.90 gears

Do you have any other mods presently or bone stock? I dynoed at 348rwhp 360rwto stock, interesting to see how we compare both beinng A4 auto 2005 etc...
Be sure and get that pre-mod dyno! I know it seems it would go w/out saying but you'd be surprised how many times tuners have pulled this on me before not wanting to strap her down twice. Good luck! eagerly awaiting your results, also try and dyno between mods ie.. 1 stock dyno --2 ported intake re-dyno--3 ported throttle body last dyno-- you really need to do this to see what? where? the power is doing between mods, the throttle body goes on/off in a snap, even the intake can be swapped out by a proficiant mechanic in 20 min.
I'm more interested in the gains w/throttle body (Ported intake has been proven many times, though I haven't seen as high as 15rwhp that the OP quoted but deff seen a plethora of 7-10rwhp gains w/ported intakes), cost is decent enough to look into the reality of gains if any w/this mod? from what I've read on this, it mainly improves response not HP, but others swear to the contrary, you are in great position to settle this quandry.:thumbsup: