Thanks for the input Steven, yeah I know that the SuperTrapp in the photo is big and that it has a 1.75" inlet, but it was clearly the best looking Universal that utilized 3" disks and SuperTrapp said that it was the quietest muffler in the Universal line which is important because the project is planned to be street legal.
As far as the size goes, the chassis calls for a 60" wheelbase so there should be plenty of room for the big muffler, I have already fabricated an adapter for my existing pipe.
I found the muffler here
summitracing.com
still expensive but alot cheaper than list.
Project completion is scheduled for March 09 and I can hardly wait to share photos and video with everyone. :biggrin: