Titanium was used for the Mclaren F1 exhaust. If it sounds anything like the Mclaren F1 race car. It sounds like a ricers dream. Honestly, it sounds like the worlds loudest weed wacker. LOL - In 1997 I went to an FIA GT race. Watched MB CLK GTR, Porsche GT1, Lotus GT1, Renault GT1, Morgan, Marcos Manta's , Etc... Out of all of them the Mclaren, with its titanium exhaust, was the only one that sounded like total s*** (weed wacker) down the front straight. Of course, this is not a very fair comparison, but it i the only car with a titanium exhaust that I have heard....