This is a optional HPI Sway Bar Set, and is intended for use with the Baja 5B and 5T 1/5 scale vehicles. Fine-tune your Baja's racing performance with this front and rear Sway Bar Set! Three sets of swaybars means a wide variety of tuning options. Get just the handling you need from this set! Maximize the handling and increase the fun of your Baja with this easy to install Sway Bar Set!