AST Suspension Lowering Springs (30mm/20mm) - 2011-2016 BMW M5 Competition (F10) Alfa Romeo SPL Parts TITANIUM Series Tension

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AST Suspension Lowering Springs (30mm/20mm) - 2011-2016 BMW M5 Competition (F10) Alfa Romeo SPL Parts TITANIUM Series TensionAST Lowering Springs for the 2011 2016 BMW M5 (F10) 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