Tanabe TUB099R Sustec Rear Underbrace for 2004-2007 Scion XA and 2001-2005 Vitz RS The internal construction of the brace features a double I-beam construction which help these braces achieve their high rigidity Ultra lightweight ovalshaft Specifically engineered to connect to points on the chasis that would provide the highest rigidity and flex reduction Braces are available in 2 or 4 point configurations, depending on application