Glenn,
I dont have the TVT aluminum intake tubes yet. Take a look at this link to Shelton's setup. This is what it will look like when done. Except that I did not cut my radiator support. Pages 39 and 40 of the thread have good pics of the install.

https://www.crossfireforum.org/forum...ts-ect-39.html

You can get the 'devil horns' from NeedsWings. I sure hope they help the air flow, that is why I got them. As far as testing, I dont know if anyone has done any air flow tests or anything else.

You can not add them to the stock setup. You need a 2.75" hose feeding to the front and the factory setup will not let you do that. Unless you come up with an alternate way to mount them. It would still improve the amount of air you get, but not like opening it up to more of a straight line piping.