It's not a glasspack, it doesn't even have packing. They are special, they sound better than anything I've ever heard.

 

Same design without packing. I've never heard one in person.

 

No it's not. The AT uses the Aerofoil cone to direct some exhaust to the outside where it recombines with the inside straight through exhaust (Aero Turbine marketing says this action actually helps "vacuum" exhaust out therefore improving scavenging, but I'm doubtful), there was a noticeable improvement between it and my 40 series. . They sound great/unique and perform well. Glasspacks, Magnaflows, Borlas, Dynomax, ect, all use a straight through tube with louvers/holes and packing between the louver pipe and casing.
Better Pictuce of an Aero Turbine.

Glasspack

Magnaflow