We helped a friend prep his SRT8 Magnum for SCCA ESP. We fit him with a set of 18x10" wheels on all four courners for track duty only. Slammed it to the ground and REALLY helped the overall package come around.
It's not the fastest thing out there, but super fun to drive. Mopar has got the big brake kits on these newer cars really dialed in. They haul down the speed really well.