AST Suspension Lowering Springs (25mm/25mm TUV) - 2004-2013 Audi A3 Sportback 1.4TFSi/1.8TFSi/2.0FSi/1.6TDi/1.9TDi w/ Sport Suspension/S-Line (8P) coilover-upgrades Premium (GP/GJ) are principally designed

Premium (GP/GJ) are principally designed to reduce body roll or sway

Billet 6061-T6 aluminum with QA1 rod ends at both pivots for length and pickup-point adjustability

Worn Front Control Arm Bushings on your 1998 Audi A4 Avant (B5) have a huge influence on vehicle stability

2004 Volkswagen Golf/GTI 1

AST Suspension Lowering Springs (25mm/25mm TUV) - 2004-2013 Audi A3 Sportback 1.4TFSi/1.8TFSi/2.0FSi/1.6TDi/1.9TDi w/ Sport Suspension/S-Line (8P) coilover-upgrades Premium (GP/GJ) are principally designedAST Lowering Springs for the 2004 2013 Audi A3 (8P) 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