I have had D&D pipes on my 2002 BA from the day it rolled out the Triumph Dealer. They are loud and will set off car alarms and cause hearing loss after a long ride down the highway at 75 to 80 mph. At idle, they sound fantastic. When accelerating, they sound outstanding. I like them and on long trips I will wear ear plugs to combat the resulting hearing loss. My wife's 2001 Custom Bonnie also has D&D's and she loves them. If I didn't know any better, I would believe they were straight pipes! My fellow riders rather I ride in the rear. Co-workers say they can't hear their stereos in the truck/car when behind me on the way to work. They look good too. Hope this helps.