Tanabe TUB038R Sustec Rear Underbrace for 2000-2005 Lexus IS300 JCE10L 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