AST Suspension Lowering Springs (25mm/35mm TUV) - 2011-2017 Subaru Trezia 1.3 (D1) 335d 1999 Audi A4 Avant 1

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AST Suspension Lowering Springs (25mm/35mm TUV) - 2011-2017 Subaru Trezia 1.3 (D1) 335d 1999 Audi A4 Avant 1AST Lowering Springs for the 2011 2017 Subaru Trezia (D1) 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.