Hi guys: I just bought a 2009 CSX and am liking it a lot. Only problem is that the rear end shudders and steps out a bit even on a straight. I've cornered pretty hard but haven't hit a significant bump so don't know if it'll go nuts when that happens. I pulled the lower shock bolts and the shocks are smooth and damp fine. The only alignment parameter on the rear is camber. Tire pressures are all 33PSI as required. I'm going to try reducing rear tire pressure but am hoping some of you guys have other suggestions.