It looks like they utilized the whole pipe. If they didn't they did a nice job (better than the emblems). I have come across a set of these in the past. Maybe if I find a set cheap enough I might experiment.
[img width= height=]http://i472.photobucket.com/albums/rr90/prundle4/EBAY/105d8c6e.jpg[/img]
[img width= height=]http://i472.photobucket.com/albums/rr90/prundle4/EBAY/cc390638.jpg[/img]
[img width= height=]http://i472.photobucket.com/albums/rr90/prundle4/EBAY/3db97864.jpg[/img]