AST Suspension Lowering Springs (30mm/30mm) - 2003-2009 Mazda Mazda 3 Hatchback/Sedan 2.0CiTD (BK) 1979 2019 BMW M3 (F80)

2019 BMW M3 (F80)

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AST Suspension Lowering Springs (30mm/30mm) - 2003-2009 Mazda Mazda 3 Hatchback/Sedan 2.0CiTD (BK) 1979 2019 BMW M3 (F80)AST Lowering Springs for the 2003 2009 Mazda Mazda 3 (BK) 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.