I have the 7th gen coupe (04), and I think the the back of the 8th gen has a much sexier "rear". So does anyone have seen or heard of anyway to change my un-sexy rear to much the flirtier and sexier 8th gen?

 

Trade-in...

Seriously, though, I assume you really mean from the 7th gen to the "updated" 7th gen. In this case, it is possible, but you will likely be replacing most of the rear clip (though I don't know the specific differences in the body panels, so am speaking out my butt a little bit here).

If you really mean the 8th gen (2008-present), not possible.

 

I think we might need to see a picture of that rear end to tell the difference..