AST Suspension Lowering Springs (35mm/25mm) - 2016+ Kia Optima Sports Wagon 1.6T-GDi (JF) 135is 2018 BMW 2 Series Coupe

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AST Suspension Lowering Springs (35mm/25mm) - 2016+ Kia Optima Sports Wagon 1.6T-GDi (JF) 135is 2018 BMW 2 Series CoupeAST Lowering Springs for the 2016+ Kia Optima (JF) are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers for its quality and metal consistency. Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the vehicle. Features