AST Suspension Lowering Springs (30mm/20mm TUV) - 1997-2003 Audi A6 Avant 2.4/2.7/2.8/3.0/2.5TDi 6CYL (4B) GS350 The dust protection elements and

The dust protection elements and spring perches included in the delivery

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AST Suspension Lowering Springs (30mm/20mm TUV) - 1997-2003 Audi A6 Avant 2.4/2.7/2.8/3.0/2.5TDi 6CYL (4B) GS350 The dust protection elements andAST Lowering Springs for the 1997 2003 Audi A6 (4B) 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. Features