Are dynomax super turbo mufflers worth the cost?

The bigger 17769s are higher flowing and sound pretty much the same and work great as well. They are big mufflers with 3" in and out and large case units at 5.5 by 11". They are tougher to fit under the cars but you can do it!
Tom
ill try to get them to fit under my 66 b body. i think ill be able to.