Swift Springs Standard Coilover Spring (Straight Type) - ID: 2.5" / Length: 4" Crosstrek AST Lowering Springs for the

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Swift Springs Standard Coilover Spring (Straight Type) - ID: 2.5" / Length: 4" Crosstrek AST Lowering Springs for theSwift Springs Standard Coilover Springs in 2. 5" ID and 4" length are precision engineered straight type race springs built to outperform conventional suspension springs in every measurable category. Designed for coilover dampers using standard SAE sizing, these 2. 5" ID Swift springs are manufactured in Japan from proprietary H5S. TW high tensile alloy steel. With fewer coils and reduced unsprung mass, Swift springs deliver increased traction,