Aluminum repaid suspension system system system owner 1° toe-in leading linked to straight back suspension system system system. Redesigned to get the inner pivot location nearer towards car center enabling to utilize longer and smaller suspension system system supply choices and new suspension system system system geometry. The narrower design increases right back traction. Perfect for high traction tracks made for carpeting songs. The aluminum suspension system system system holders work vital suspension system system Settings (I.S.S.) that allows for fast & effortless suspension system geometry set-up. Machined from premium Swiss 7075 T6 aluminum and black colored colored colored colored colored coated. Making use of eccentric suspension system system system bushings put in aluminum suspension system system system system obstructs, with additional suspension system system system shims, the XB4 suspension system system system system geometry is completely modified.