yeah, well the system does have a resonator, but its 3" pipe and deletes 3 catalytic converters so its pretty loud. I would go ahead and dynamat the whole thing except that stuff is so expensive.

What about the foam/fabric style deadener?? Like if i was to use spray adhesive and put it on top of the dynamat thats already in the trunk and maybe under the rear seats as well, would that make any noticable difference???