It's a Thrush mini turbo. Bought it a Summit racing for $23.00.
Part# WLK-17702
It was tough to find a muffler that was the same size as the Bursch. The killer was the width. most of them where too wide.
This is the same width but a bit shorter.
The dimentions are 3 1/4" thick x 7 3/4" x 11" long(16 total with the adapter tubes on either end).
I cut the old muff. off and used the 180* stub pipe. the new muff. slipped right on.
I then put it under the car and bolted it into place for the fit. It fits good!
Once there, a small tack weld to hold it and back out it came for the rest of the welding. Once all that was done, it got bolted back again for the fitting of the tailpipe. The tail piece was too short due to the new muff. being shorter. I put it inplace temporaraly. I will have to take it to a shop to have a new one bent to fit under the valence.
I did not dent the outer case to make it fit. It seemed to fit under the heat sheild fine with plenty of gap on all sides(about 3/8"on the ends).
Hope this is usefull!!
Keith