I just ordered a set of D-Spec DS7 for my 2006 coupe with the tein 350z h-tech springs. Is this correct or did I wnat to get the DS9's?

I would like to know. That's the exact same setup I just ordered.

The DS-7's are specifically designed for the coupe, and the DS-9's are designed for the 350Z. I don't know any of the specs, so I am not sure what the difference is. Because you can adjust rebound/compression, I am not sure what could be different. Possibly the DS-7's are made to work with the slightly higher springs of the stock G.