H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 200 lbs/inch - R25120200 Exhaust Valve Controllers More durability is always a

More durability is always a good thing

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

Reduces oil temperatures by an average of 13 degrees

providing better performance and increased tuning potential

Enhance your Audi’s key with the AutoTecknic Dry Carbon Fiber Remote Key Case designed exclusively for the 2025-up Audi A6 e-tron Q4 e-tron and Q6L e-tron

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 200 lbs/inch - R25120200 Exhaust Valve Controllers More durability is always aH&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