SuperPro 1990 Mazda Miata Base Rear 16mm Sway Bar Mount Bushing KitSway Bar mount bushes are an important part of the whole sway bar system. Worn or rubber bushes in these locations lead to movement in the sway bar in unwanted directions that effect the effectiveness of the sway bar. An upgrade to SuperPro bushings can return lost sway bar performance and improve handling. This Part Fits: Year Make Model Submodel 1999 Mazda Miata 10th Anniversary 1990 1997,1999 2005 Mazda Miata Base 1993 Mazda Miata LE 2000 2005