I got rid of the exhaust system a while back from the muffler to the turbo. At the time I tuned the car to Malone stage II also. The buzzken lasted all of about a year, and eventually blew out in spectacular fashion under heavy acceleration right in the flex baffles. I don't think the new models have that waffle design, but are more like the flex wrap design of the Rawtek. I always thought the ridge design would be a problem, and I think the sudden release of pressure also blew out the turbo, but how can I prove that. After this I had a good excuse to upgrade the turbo and get the stage III. This time however I got the Rawtek 3". Real happy with the setup. It isn't really loud since I still have the stock muffler hanging on the back end, but there is no drone, or vibrational sounds coming from the exhaust. I should qualify this by saying I also bought new engine mounts, and a fluid dampener also. Before all of the modifications the second time, I did have a droning sound, and a vibrational annoyance sound. Not any more, the car is like a decent car now off the line, and the mileage went up as well. My only problem is with the synchros, but that is another story about the SBC stage II endurance clutch.
