AST Suspension Lowering Springs (30mm/25mm TUV) - 2004-2011 BMW 6 Series 630i Cabrio/Coupe (E63/E64) 180SX Part Number KCA437 Part Name

Part Number KCA437 Part Name Control Arm Bushing Vehicle 2005-2009 Hyundai Tucson GLS Chassis Code JM Bushing 1 Inner Diameter 14

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AST Suspension Lowering Springs (30mm/25mm TUV) - 2004-2011 BMW 6 Series 630i Cabrio/Coupe (E63/E64) 180SX Part Number KCA437 Part NameAST Lowering Springs for the 2004 2011 BMW 6 Series (E63 E64) 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.