Q: Should I get just the rear bar, or the front and rear set?

For most Model S Long Range and Plaid owners, the rear bar alone is the recommendation. It livens up the rear and sharpens turn-in, and it installs easily without major work. The front bar is aimed at owners who track or race the car, because fitting it means dropping the subframe and disconnecting the axles. You choose the front bar only, the rear only, or the full set at checkout, and the full suspension package includes these bars alongside lowering and the billet arms.