GMK (GrandMasterKhan) is the original designer of this type of intake. His intake is almost identical except it is 3 inches in diameter as opposed to the CC 3.5
The 3.0 is supposed to add more power. He also makes these pipes in carbon fiber from time to time.
I got mine from him last year and haven't gotten around to installing it yet...
PM him here or on
Fast Cougar and he'll hook you up.