AST Suspension Lowering Springs (25mm/25mm) - 2003-2009 Nissan 350Z (Z33) 325xi XT Limited Chassis Code SG

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AST Suspension Lowering Springs (25mm/25mm) - 2003-2009 Nissan 350Z (Z33) 325xi XT Limited Chassis Code SGAST Lowering Springs for the 2003 2009 Nissan 350Z (Z33) 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.