Finally got the time to finish this project. Only thing left is to clean up and make a video.:lol:
I had a local performance exhaust shop make up 4 stainless steel pipes for me. Nothing to complicated, 2 1/2" OD x 6"s long with 2 1/2 ID on one end of each. I later cut them to length as needed.
The first two I put at the end of the X-pipe to push the rear pipes a little further back from the TRW spring.
http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0005-2.jpg

http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0007-2.jpg

The other two were used for the tips.
I cut the turn down tips off the mufflers leaving about 3/4" to attach the new tips.
http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0011.jpg

Once I figured out the angle the tips needed to be at off the back of the mufflers I fit and welded them on.
http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0012.jpg

http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0015.jpg

I cut the hanger barbs off the mufflers because I am using the stock muffler hangers for the 73.
You can see I also wraped the pipes with header insulation from Thermo Tec around the spring.
http://i213.photobucket.com/albums/cc149/Redwingvette/Magnaflow%20exhaust/DSCF0016.jpg

I still have to replace the old rusty hangers with some new ones before I can really be finished so the Gibson tips are not clamped in place yet.

Thanks everyone. It has been a fun project since I can't drive the Vette in all the snow we have here. I hope to get it out of the garage at least this weekend. Just to here her new sound.