Hi guys just confirmed my 2013 FE4 SS has the 20941932 front cradle bushings. I can just see the part number from under the car on the exposed part of the bushing. I am thinking the rears are also the same as the track pack kit as well. The track pack must assume 2010-2011 FE3 as a starting point, which has the earlier bushing type. This makes sense as the shock mounts are not needed on the FE4 cars either...I am going to make a leap and say the FE6 front struts are the same "re-valved" FE4 units also.
I am just going to do the rear shocks and the sway bars on top of the FE4.