I've been looking for optional DC2R side skirts for a while, and looking from the photos it appears that your side skirts may be replicas. The part at the end of your skirts don't sit flush as the OEM ITR ones.

Where the skirts sit flush on the body ideally means there the OEM item. I've seen replica skirts fit on a DC2, and can tell you that your skirts fit far better than their's. Also I refer to DTN's reference picture, and the curve in the middle appears to be more distinctive then the OEM ones, which have a slight curve towards the end of the skirt.

Hope that clarifies your situation.