Haha I'm taking fobra bought the expensive stuff for the .03 extra hp.
Slayer it really doesn't matter which you get. I ran that combo on my car, I don't and didn't see anything wrong with it. Its not flashy but does the same thing as the more expensive peices.
If you will do a search on here, somebody did a test on pretty much all the plenum and TB's. From what they said, there was a 2hp difference from the most expensive (Accufab), and the cheapest (dont remember which one). So if 2hp is worth the extra $200, go for it.
Unfortunately, the Professional Products stuff is not tested here. However, this might help you with your decision! I'll likely be going with the Accufab come Spring time.