I had one on my Dyna it made great power, sounded good, and I had zero problems with quality. The high heat black finish wore out in a couple years but I would expect that with any black pipe. For me it's too loud for a long haul touring bike and I never really like the looks of the vented reverse cone thing on the end but at the time it was the horsepower king of 2-1s for Dynas, it didn't do as well on FLHs and Softails but much of that has since been remedied. Oh, and dyno tuning is a must to get the most out of one and for me at least, just to get the bike to run right.