The COBB 02-07 Subaru WRX Rear Anti-Sway Bar Kit is one of the most effective ways to improve handling without negatively affecting ride quality or NVH (Noise, Vibration, Harshness). This lightweight, hollow bar is 25mm in diameter and provides an adjustable increase in stiffness to resist body-roll from 460 lbs/in, 650 lbs/in, or 690 lbs/in. The CNC bent anti-swaybar kit includes stiffer polyurethane bushings, bushing brackets, and solid mounts for instant suspension response, and all are direct factory replacements to ensure perfect OEM-like fitment without compromising performance. The bushing brackets also include built-in grease fittings to make maintenance quick and simple. The COBB Tuning Anti-Sway Bar Kit is compatible with stock and most aftermarket endlinks.