AST Suspension Lowering Springs (60mm/40mm) - 1997-2003 Audi A6 Quattro Sedan/Avant 4CYL (4B) MX-5 Miata 2004 Subaru Legacy Brighton (BD/BG/BE/BH/BL/BP)

2004 Subaru Legacy Brighton (BD/BG/BE/BH/BL/BP)

2007 BMW 7 Series (w/ EDC)

2009 Ford Focus SEL (C307/C346)

2019 Nissan 370Z RWD

5) have a huge influence on vehicle stability

AST Suspension Lowering Springs (60mm/40mm) - 1997-2003 Audi A6 Quattro Sedan/Avant 4CYL (4B) MX-5 Miata 2004 Subaru Legacy Brighton (BD/BG/BE/BH/BL/BP)AST 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