This is a higher performance Ferrari F50 and Enzo Suspension Bushing to replace Part # 163758. It is Re-engineered for higher performance and hand built using advanced technology and materials Made of high quality polyurethane with a steel sleeve and mounting arm, these bushings will outperform and will have a very long service life compared to the original OEM parts. These will firm up the vehicle's cornering and eliminate any unconfident feel associated with the factory aging suspension. These bushings have a very long service life due to the proprietarily developed polyurethane compound and will not need to be replaced as often as OEM ones, saving future labor costs and vehicle down time. Each bushing comes preassembled as pictured and the assembly is ready to press fit into the OEM mounting bracket . Once mounted, no further servicing is required.