H&R 60mm ID Single Race Spring Length 60mm Spring Rate 50 N/mm or 286 lbs/inch - ZF060-050 Wheels - Cast Valet mode limits the acceleration

Valet mode limits the acceleration of the vehicle by 55%

Adds An Additional 2 Quarts Over Stock

Maximizes Exhaust Flow

The autoclave-cured carbon insert delivers the same pinhole-free

3-1/2" Flange ID x 5" Base x 3-1/2" Top x 6" Height

H&R 60mm ID Single Race Spring Length 60mm Spring Rate 50 N/mm or 286 lbs/inch - ZF060-050 Wheels - Cast Valet mode limits the accelerationH&R 2. 50" I. D. Race Springs are made with extremely high tensile strength wire alloy which allows the use of a thinner wire. Manufactured using advanced materials and precision technology in Germany, H&R 2. 50" I. D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel. For any given spring rate, they are on average 15% lighter and have 10% more travel than competitors' springs. Main springs range from 6" to 18" in length and