I did test both there just wasn't enough difference between the two. I installed it in the trunk of my brothers 03 civic, about a month later I put b quite in my trunk 03 civic. I put two layers on my trunk, true its not as thick as dynamat. like I said there wasn't alot of difference they both stick great as long as ya do a good prep. Dynamat for trunk was about 100 bucks or so can't remember b quite 100sqft 100 bucks. I did my whole car doors floor board rear deck. I don't have a single rattle. It really depends I guesse how big ya want to go. If your putting in somthing insane may be ya wanna go with dynamat. All I can tell ya is the b quite has been in my car 2+ years and still performs the same as when I put it in, with no saging.