Yes, it's Norms Full Hardtop. Anchored in at 3 points in the car. The only thing I would say would not be aerodynamic on the hardtop are where the door windows meets the B pillar(if that's what it's called). In the morning I had some dew in that area and after a run someone where I can see how the wind plays with the water on the top. Looks like the wind abruptly hits that pillar and shoots outward causing a marginal parachute effect. Other than that on the rest of the top the dew simply and somewhat uniformly moves towards the rear of the car to the bill. Wind tunnel, like everyone here is talking about is a must. Also, doesn't the cars rear facia produce a parachute affect? Even Norms facia does as well.
2007 Sky Redline: DDMWorks V8 Conversion- LS376 525hp 6.2L, TR6060 6-speed, Custom Magnaflow exhaust, DDMWorks Backbone brace, DDMWorks Pro Beam, BC Coilovers, Wilwood(Front)BBK, Norms Full Hardtop and Rear facia. Tuned on LS2Edit