I believe those are Marino Perna’s (Pantera East) stainless steel Euro GTS replicas. I say “replicas” but they were only replicas on the outside. They were obviously polished stainless steel but internally, they were a straight through design. If you could post a photo looking into the tips, I’d know for sure. Shine a flashlight into the inlet and look into the tips. If you can see through the canister, they are likely Marino’s. I believe he only had 20 sets made, with matching Euro GTS replica headers. He had a very hard time selling them because people wouldn’t pay the $1700 price for the set (headers & mufflers). It was quite bizarre because they were a work of art and worth twice the price. I had a set on my own Pantera but I had mine ceramic coated black with the inside of the tips red, just like the OEM Euro GTS mufflers.
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