To be honest, I really don't know. They came with the car when I bought it. However the ride is really smooth on highway, but in town I can really feel every bump. I thought it was cause I have the 35 series tires on them, but now I'm begining to think my struts need replacing. I want the most smoothest ride possible but still want it to look good. If I have to switch them back to OEM I will but I would go with the star style OEM's.