H&R 2.5 inch ID Single Race Spring Length 16 inch Rate 250 lbs/inch - R25160250 fits_2007-2016`Volvo`S80 each duct is constructed from

each duct is constructed from pre-preg dry carbon fiber using AutoTecknic's autoclave vacuum process for precise forming

5" of adjustment

Available in Anodized Gold T304 Stainless Steel or Blue Burnt Titanium

100 Percent Hand MIG-Welded For Long Lasting Quality

Contructed out of Heavy-Duty 3/8 IN and 3/16 IN 5052 Aluminum

H&R 2.5 inch ID Single Race Spring Length 16 inch Rate 250 lbs/inch - R25160250 fits_2007-2016`Volvo`S80 each duct is constructed fromH&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