If you end up running 20" HC wheels, you could also run the 6 piston setup using these plates. The 4 piston Scat Pack setup and at least the 15.4" 6 piston HC brakes interchange as both models use the same spindles on the LX/LC cars. Mopar changed the HC brakes to a 15.7" rotor recently, but I can't remember if the caliper changed as well, or if the spindle did. So not sure if those would bolt up.
