AST Suspension Lowering Springs (30mm/25mm) - 2007-2014 Audi TT Roadster 1.8TFSi/2.0TFSi (8J9) Lancer Evolution Part Number W73445 Part Name

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AST Suspension Lowering Springs (30mm/25mm) - 2007-2014 Audi TT Roadster 1.8TFSi/2.0TFSi (8J9) Lancer Evolution Part Number W73445 Part NameAST Lowering Springs for the 2007 2014 Audi TT (8J9) 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