Finished installing a SuperTrapp IDS2 Quiet muffler. I am running it with 12 discs which gives it the minimum back pressure for this muffler. I like the sound, and of course it is louder than stock. It is six pounds lighter than the stock muffler. I had to compensate for two quality control problems: the mid pipe would not fit on the header pipe and the muffler bracket did not match the location of the frame bracket. I rented a tail pipe expander at AutoZone, and I made an intermediate bracket to mount the muffler. I could have forced the muffler to match the mounting holes, but I didn't like the idea of stressing the whole exhaust system.