Torque Solution Front Lower Inner Control Arm Bushings How does a Nerf Gun work? YouTube. Torque Solution Front Lower Inner Control Arm Bushings Applications: Subaru WRX 2008 2014 Torque Solution polyurethane control arm bushings replace the inner rubber material that over time deteriorates and fails. Leaving you with a sloppy, squeaky suspension. Made from 75a durometer polyurethane. Each mount includes 2 half's and a center steel sleeve. These give you improved traction and reduced wheel hop without too much vibration. *ONLY 1 kit needed per car. Eliminates wheel hop traction loss Improved 60fts e. t's 600HP+ and 9sec e. t. torture tested 75A durometer bushings Limited Lifetime Warranty