H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 200 lbs/inch - R25120200 Exhaust Valve Controllers 4-1/2 IN Diameter Black 304

4-1/2 IN Diameter Black 304 Stainless Steel Clamp-On Exhaust Tip

and gold to compliment your engine bay

providing better performance and increased tuning potential

Constructed from 100% pre-preg dry carbon fiber (excluding mounting clips)

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 200 lbs/inch - R25120200 Exhaust Valve Controllers 4-1/2 IN Diameter Black 304H&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