H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch - R25120400 Muffler Delete Pipes 6061 Anodized Aluminum construction

6061 Anodized Aluminum construction

Dynamic Range: Over 25 dB difference between open and closed modes for unmatched versatility

The durable hose construction is both heat and chemical resistant for a secure connection to your Mishimoto Catch Can

Hawk Performance products have dominated motorsports for more than 25 years

and It's no wonder with the radiator that Chevy gave it from the factory

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch - R25120400 Muffler Delete Pipes 6061 Anodized Aluminum constructionH&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