AST Suspension Lowering Springs (30mm/20mm) - 2015+ Mini Cooper S/SD/JCW Cabrio (F57) 323is AST Lowering Springs for the

AST Lowering Springs for the 2012+ BMW 3 Series (F31) are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency

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AST Suspension Lowering Springs (30mm/20mm) - 2015+ Mini Cooper S/SD/JCW Cabrio (F57) 323is AST Lowering Springs for theAST Lowering Springs for the 2015+ Mini Cooper (F57) 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