So while taking turns at faster than allowed I get this feeling like the back of the car gets unsettled, it's to the point where I dont trust the car. The suspension is stock but it feels like when ever I'm going fast and hit a bump or hit those seams for an overpass it just makes the rear end feel like an old Buick
Check for shipping pucks? Sounds kinda weird. I've never felt the rear of the car feel unsettled really, unless I was trying really hard to swing it out a little bit. Nothing weird going over bumpy curves though like a torque tube rear suspension would do.