Additional soft arm with slimmer carbon yields more mechanical traction of automobile and improves side traction. Recommended for suprisingly low & low traction asphalt and carpet songs. The softer supply is slightly more delicate. Top of the arm shape conforms around the internal surprise place for proper clearance without compromising strength and improve steering and both forward traction and lateral traction. This design improves durability and removes radial play for optimum precision and control from the top arms. Top of the hands are created using a CFF™ - Carbon Fiber Fusion, for outstanding managing. This upper arm will fit in the front side left, plus the back right of this automobile. Additional soft hardness.