Polyurethane Bushings

Polyurethane bushings eliminate the slop that plagues factory rubber bushings: at 3-5x the stiffness, they reduce suspension deflection by 70% during aggressive cornering, keeping the alignment locked in. Unlike the 50% roll reduction of #9 sway bars, bushings address the root cause of geometry distortion under load. Data from Energy Suspension shows control arm movement drops from 0.5 inches (rubber) to 0.1 inches (polyurethane), slashing wheel camber changes by 0.3 degrees. The trade-off is a 40% increase in NVH — a small price for turn-in precision that outperforms the average rubber bushing setup.