see I have to disagree...I think the crystal's sound so much better than my kappa's. I put crystal's in a jeep for a friend of mine and everytime I am in his vehicle I am always stating how jealous I am of how his vehicle sound

99 Mystique LS T-Red ATX Duratec Mods: Hella stereo Mods K & N air filter w/intake pipe www.sounddomain.com/id/jongordo8