Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 12" 930 Yellow Speed Racing Dynamic Pro

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Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 12" 930 Yellow Speed Racing Dynamic ProSwift Springs Standard Coilover Springs (Barrel Type) in 3. 75" ID and 12" length are precision engineered barrel design race springs for large bore coilover dampers. These 3. 75" ID Swift barrel coilover springs are manufactured in Japan from proprietary H5S. TW high tensile alloy steel, combining the anti deflection barrel design with the strength needed for heavy vehicle and high load applications. Swift Springs has over 90 years of precision