I also posted to FerrariAds.com too, but I thought this might be more effective. I'm looking for a used (or a deal on new) TUBI muffler to fit an injected 512BBi. Please email me directly if you know of one for sale. It looks like this:
Gary, There are a few 512BBi's for sale that are equipped with Tubis, perhaps you could offer to buy the exhaust system separately if they still have the stock exhaust... just a thought. See you tomorrow!
Gary sorry for the slightly useless post but I had to say - you are definitely on the right track. We've put Tubis on nearly EVERYTHING and I tell you this combination (bb + tubi) is one of the most fabulous out there - it sounds absolutely delightful...WONDERFUL... pure music.... I LOVE IT - it really is flat 12 engine harmony! Good luck in your search. Edited to say - Try Tino (board sponsor) for a new Tubi.