Megan Racing Rear Trailing Arm Bushings for Nissan 350Z 03-08 - MRS-NS-0307Factory bushings are made from rubber compound, which deteriorates over the years. OEM bushings become softer, therefore becoming less capable of resisting the forces being placed on them. Megan Racing bushings on the other hand are 20% 30% stiffer and do not deteriorate in performance over time. The benefit of the increased stiffness will improve driver control of vehicle. Fit Nissan 350Z 03 08 150% Harder that stock bushings Made with high strength