Ditto! So is this just normal effects of the Koni's? I've replaced the koni's twice under warranty and the noise is still there. I've checked everything and it's all tight... however... I just had my lady drive me around the block while I was in the trunk and there appears to be two rattles: 1 is from under the car right around where the diff is (it's a rather heavy thud when I'm right on top of it) 2 is a slight thud under bigger bumps around the rear pass wheel well. But there is a constant low rattle while driving over anything other than completely smooth roads.

Any ideas are welcome as I've been living with this rattle for sometime now.