I assume 3g refers to 3rd Generation Eclipse... This is the current design. The 2nd Gen (2g) were the Eclipses and Eagle Talons with big wings on the back. The 1g's almost looked like the old Plymoth Laser.

I think there is a web site just for the 3g DSM guys. (DSM = Diamond Sport Motors: meaning all Eclipses and Talons... not sure if that includes Stealths and 3000 GT's or not... )

Edit: http://www.club3g.com