AST Suspension Lowering Springs (35mm/35mm TUV) - 1997-2004 BMW 5 Series 520i/523i/525i/528i/530i/520D/525TDS Touring w/ Air Suspension HA (E39) Cougar 2012 Nissan Note 1

2012 Nissan Note 1

2002 BMW 3 Series RWD (E46) — Includes M3

1988 Ford Mustang 2

GT Sportback (CY) have a huge influence on vehicle stability

AST Suspension Lowering Springs (35mm/35mm TUV) - 1997-2004 BMW 5 Series 520i/523i/525i/528i/530i/520D/525TDS Touring w/ Air Suspension HA (E39) Cougar 2012 Nissan Note 1AST 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.