AST Suspension Lowering Springs (40mm/30mm TUV) - 1998-2005 BMW 3 Series 330D Sedan whiteline-subframe-mount-bushing 2009 Dodge Challenger 3

2009 Dodge Challenger 3

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AST Suspension Lowering Springs (40mm/30mm TUV) - 1998-2005 BMW 3 Series 330D Sedan whiteline-subframe-mount-bushing 2009 Dodge Challenger 3AST Lowering Springs for the 1998 2005 BMW 3 Series (E46) 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.