I've had the bassani system on my Z06 and then when I got rid of it for a ZR1 I pulled it off and transferred it over because I liked the sound so much. However a few months before I got rid of my Z06 I started to hear a rattle coming from the muffler. Apparently some of the baffling had come apart inside the muffler. I contacted bassani who gave me the run around for about a month when all off the sudden a box shows up at my door. Keep in mind this was back in September when I first contacted them and just the other day they started emailing me. There was no invoice that came with the new muffler and nothing stating that I needed to return the old muffler to them. Their excuse for why it took so long to get me a new muffler was first that they had to make one and then that since they discontinued my system that they had to have the R&D department find out if the new muffler would transfer over.