I'm poor, so I've only used Damplifier in the doors of my truck... killed the rattles....
Now I've got a truck with a great sound system, and one working caliper :wtf:
It's really good stuff, and the owner's a supporter of
www.caraudioforum.com
I trust all of their products are damn good... I want to get some sledge for my new car... but i need to do some more work to it first
~Nate