AST Suspension Lowering Springs (35mm/35mm) - 1997-2004 BMW 5 Series 525D/530D Touring (E39) whiteline-differential-mount-center-support-bushing Worn Front Control Arm Bushings

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AST Suspension Lowering Springs (35mm/35mm) - 1997-2004 BMW 5 Series 525D/530D Touring (E39) whiteline-differential-mount-center-support-bushing Worn Front Control Arm BushingsAST Lowering Springs for the 1997 2004 BMW 5 Series (E39) 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.