Its a pain in the @$$ to get these cars to shut up lol. Like the sig says I got 2 l7's and everything rattles. Even the plastic in my dash. Id say go with hush mat never herd anything bad about it and everyone says its just as good as dynomat. Washers for the spoiler but what u got to watch out for is your trunk up by the rear window it can rattle a hole lot up there too. Mine dose and I have not found a cure for it yet maby if I put a new stiffer trunk seal in but oh well. If you have enuf bass you will never stop everything from rattleing unless you eliminate it.
