In late 1999 I contacted Borla at their California Headquarters to check on the availability of the DeLorean Borla muffler. No longer available. Fred Lockett the "DeLorean Pilot" of Philadelphia, PA, at one point carried the muffler in stock. After consulting with Rob Grady the best application of a high performance DeLorean muffler was a twin inlet and twin outlet design. Unfortunately Borla is no longer producing the DeLorean muffler or will they take orders for such a DeLorean muffler. However, Rob did discuss the high performance exhaust on his Green car when I was offered to drive it. I can offer this advice. A New York City DeLorean owner, Kayo Ong, drives his DeLorean everyday. He spent some serious money with a custom exhaust designer and fabricator for his DeLorean. Maybe he can share his thoughts why he replaced the custom setup with the stock, factory, OEM DeLorean exhaust. Keep it stock. Best Wishes, Michael Pack