Mine weighed about the same, 2.5 Lbs.
After some trimming off the bridge posts it lost about 1/2 Lb, but after adding some more aluminum posts, gussets and housings to make it look Chrysler stock, it went back up to about 2.3/4 Lbs.
The stock factory wheel weighed 6 Lbs without the horn ring.
This part of my project was one of my favorite and most proud in looks.