AST Suspension Lowering Springs (50mm/50mm) - 2004-2010 BMW 5 Series 525D/530D Touring (E61) Spark Part Number CTY050-SP Damping Adjustment

Part Number CTY050-SP Damping Adjustment 36-Way Height Adjustable Yes Spring Rate (Front) 8

2009 Audi A4 Avant

2013 Audi A4 Cabriolet (B6/B7/B8)

Part Number CHY040-GR Damping Adjustment 36-Way Height Adjustable Yes Spring Rate (Front) 6

2002 Mini Cooper One (R50/R52/R53)

AST Suspension Lowering Springs (50mm/50mm) - 2004-2010 BMW 5 Series 525D/530D Touring (E61) Spark Part Number CTY050-SP Damping AdjustmentAST Lowering Springs for the 2004 2010 BMW 5 Series (E61) 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.