Pair of Super Angle Knuckles, Forged steel with Gold Zinc coating, For FC3S RX7 - One piece forged design. No need to send in knuckles for modification. - 45mm roll center and bump steer correction built into knuckles. Flattens LCA and tie rod angles. - Increased steering angle, altered ackerman and quicker steering due to modified tie rod pickup points. - For use with OEM Mazda hubs, brakes, tie rods and LCA ball joints. - Use with our FLCA and tie rod spacers for best results.