AST Suspension Lowering Springs (30mm/30mm TUV) - 2003-2009 BMW Z4 Roadster 2.2/2.5/3.0 (Z85) riaction-gt1-coilovers 2017 Maserati Ghibli M157

2017 Maserati Ghibli M157

2013 Mazda 3 MPS/Mazdaspeed 3

2016 Audi A1 FWD (8X)

1998 BMW 3 Series 318is Coupe/Sedan (E36)

AST Suspension Lowering Springs (30mm/30mm TUV) - 2003-2009 BMW Z4 Roadster 2.2/2.5/3.0 (Z85) riaction-gt1-coilovers 2017 Maserati Ghibli M157AST Lowering Springs for the 2003 2009 BMW Z4 (Z85) 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