AST Suspension Lowering Springs (30mm/30mm) - 2003-2010 BMW 5 Series 540i/550i Sedan (E60) 86 1982 Porsche 924 Base (924

1982 Porsche 924 Base (924 Platform)

2005 Mazda RX-8 Base (SE3P)

1999 Lexus SC300 (Z30)

2002 Mercedes-Benz C-Class

2009 Subaru Impreza WRX Base (GE/GH/GR/GV/GP/GJ)

AST Suspension Lowering Springs (30mm/30mm) - 2003-2010 BMW 5 Series 540i/550i Sedan (E60) 86 1982 Porsche 924 Base (924AST Lowering Springs for the 2003 2010 BMW 5 Series (E60) 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.