If you want to spend a little more... get the CT. I was about to do the same thing you are, but i ended up with the CT. It's only a bit more to get the CT kit, than to get the White Bros and get the airfilter and jets separately.
Pipe vs. Pipe the CT just makes more power and is it adjustable if it is too loud. The guys at CT are also very helpful, way more than those at White Bros. I actually talked to a person at CT, not just a machine like at White Bros.