AST Suspension Lowering Springs (30mm/30mm) - 2003-2009 Mazda Mazda 3 Hatchback/Sedan 2.0CiTD (BK) 1979 2013 BMW 3 Series 320i/328i/328d/330i

2013 BMW 3 Series 320i/328i/328d/330i RWD (w/o EDC)

2018 BMW 4 Series 435i/440i AWD (w/ EDC)

1994 Mitsubishi 3000GT AWD (Z15A/Z16A)

2019 BMW M3 (F80)

2003 Mazda Mazda 2 1

AST Suspension Lowering Springs (30mm/30mm) - 2003-2009 Mazda Mazda 3 Hatchback/Sedan 2.0CiTD (BK) 1979 2013 BMW 3 Series 320i/328i/328d/330iAST 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.