ULTRA RACING 4-Point Rear Lower Bar Brace for Nissan FAIRLADY Z33 350z RL4-1259 Ultra Racing is a specialist in manufacturing aftermarket chassis braces and sway bars, improving vehicle balance, steering precision, grip levels to enhance overall driving performance. Ultra Racing is a trusted brand worldwide, with distribution networks in more than 14 countries including Japan, Australia, United Kingdom, United States and Greece. Its products are certified by JIS 3101 SS 400 (Japan International Standard), JIS G 3141 SPCC SD (Japan International Standard), ASTM A 500 Grade A (American Standard) and BS 1387 (British Standard). With advanced designs and technologies, high quality material and rigorous extensive testing, Ultra Racing promises the best handling experience. With chassis stiffness, it is a case of the more the merrier. Chassis bracing maintains alignment angles and spring rates by greatly reducing body or chassis flex. Its presence in the chassis will greatly enhance and compliment every single component in the suspension system. Feel the difference yourself through improved turn-in, sharper steering response along with greater steering feedback. This upgrade is critical for the absolute car performance and essential for any car with uprated spring coils, shock absorbers or sway bars.