From the sounds of the info, it is a GT-2 wing bought from Mopar. For some reason I did not think the GT-2 wing was carbon fibre though, Jon B might chime in. The GT-2 wing is fixed in the "neutral" postion. Jason T appears to be selling his car a piece at a time....
The Northwind Carbon Fiber wing is the same exact wing (made by the same folks) that was on the First gen of GTS-R race cars, pre Oreca. This wing is "attitude adjustable" and has changable end plates.