AST Suspension Lowering Springs (40mm/40mm) - 1977-1981 BMW 5 Series 518/520/525/528i/535i (E12) 545i 1997 BMW Z3 Roadster (E36/7/E36/8)

1997 BMW Z3 Roadster (E36/7/E36/8)

2012 BMW 3 Series (E9X) AWD/RWD

1993 Mitsubishi Montero Base (V20/V40)

2000 Mitsubishi Montero Sport LS

Coupe S (F56)

AST Suspension Lowering Springs (40mm/40mm) - 1977-1981 BMW 5 Series 518/520/525/528i/535i (E12) 545i 1997 BMW Z3 Roadster (E36/7/E36/8)AST Lowering Springs for the 1977 1981 BMW 5 Series (E12) 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.