http://www.punishment-racing.com/2G_2pic_op_800x634.jpg
http://www.punishment-racing.com/intercoolerpiping.html
Looks like a very good product. It also comes with the lower piping. I believe for the price this is better than the Dejon and greddy.
A dejon setup I believe will cost more, as well as the greddy. The dejon tb flange is super thin compared to punishment's. Although you get a variety of different color selections if you go with the dejon.
Those going for a more low key appearance look, the greddy might be a better choice, as the piping is not a polished/chrome finish. Also the greddy does not replace the stock 2g throttle body elbow, which isn't a bad stock part as the diameter is plenty for most--this should make install even easier.
When it comes down to it, if the appearance of the pipes don't matter, go for the cheapest.