This Whiteline Sway Bar Bush Kit replaces the original equipment unit on Subaru Outback AWD models built from 2021 to 2023. Ball studs are heat treated and fitted with a dust boot to keep grit out of the bearing surface. The Rubber component is dimensionally matched to the original part, so steering feel and alignment settings are unchanged. Polyurethane resists oil, heat and the tearing that eventually splits factory rubber. Expect a small increase in road noise compared with the factory rubber item; this is normal for a firmer compound. A wheel alignment is recommended after fitting any steering or suspension component. All hardware, washers and a grease sachet are included where required. Every unit is supplied new with a 24 Months warranty against manufacturing defect.