QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 250 lbs/in Rate, 11" Length - 1971-1981 Pontiac Catalina bilstein-b1-top-cap-seal-kit ISR Pro coilovers deliver factory-quality

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QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 250 lbs/in Rate, 11" Length - 1971-1981 Pontiac Catalina bilstein-b1-top-cap-seal-kit ISR Pro coilovers deliver factory-qualityAvailable in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of High Travel Springs for the 1971 1981 Pontiac Catalina with a silver powder coated finish. Made in the USA, these 2" I. D. High Travel Springs are manufactured from specially designed high tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the