I have the Mistrals on my 85 LM 1000 and love them. They have a deep, throaty sound without being excessively loud. I dont have the db killers in mine.
The quality is excellent, and Ive had some people tell me it sounds like a 5.0L V8 mustang with headers.
I have also had a couple of folks ask me if they are mufflers from a Ducati Monster....
I guess they look similar.
Rick.