AST Suspension Lowering Springs (25mm/15mm TUV) - 2007-2013 BMW M3 Coupe (E90/E92) 1991 SE Chassis Code J30 Color

SE Chassis Code J30 Color Silver Grade Type Regular Inside Diameter 10

AST Lowering Springs for the 1979-1991 Mercedes-Benz S-Class (W126) are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency

1991 Toyota Camry Base (V20/V30/V40/V50/V70)

2011 Audi A4 Quattro 2

2016 Audi A5 & Quattro Coupe & Convertible (B8)

AST Suspension Lowering Springs (25mm/15mm TUV) - 2007-2013 BMW M3 Coupe (E90/E92) 1991 SE Chassis Code J30 ColorAST Lowering Springs for the 2007 2013 BMW M3 (E90 E92) 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.