[chatch10]

I recently had the B12 kit installed because of all the positive reviews on here and I have to be honest when I say it made my car feel worse and more unpredictable. I know there is a 2-3k mile break-in period so maybe I should hold off on my opinion, but the car just doesn't feel as planted anymore. I had new front control arms and the alignment pins removed at the same time along with the ECS install kit.

I'm not concerned about the harshness because I expected that based on everything I've read. My concern is that the rear of the car feels very loose and if I hit a bump it seems to sway left to right. Is this an install issue or is something causing this?