H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch - R25120400 Muffler Delete Pipes can for longer service intervals

can for longer service intervals

Unique Filter-To-Housing Interface For Easy Installation

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

5T or 2017-2020 Civic Si is the addition of flow through your intercooling system

H&R 2.5 inch ID Single Race Spring Length 12 inch Rate 400 lbs/inch - R25120400 Muffler Delete Pipes can for longer service intervalsH&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