QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 550 lb/in Spring Rate - Single Pigtail RG40003XS Precision machine work and quality

Precision machine work and quality materials put JOES A-Arms in a class of their own

Made from solid billet construction versus die cast aluminum for added strength and durability this base plate comes with button torx head throttle plate screws

Toyota Prius 2012-15

Holley upgraded their two most popular sizes of double pumper with electric chokes

FR946 material

QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 550 lb/in Spring Rate - Single Pigtail RG40003XS Precision machine work and qualityAvailable in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs 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 larger distance between the coils.