AST Suspension Lowering Springs (30mm/25mm TUV) - 2004-2011 BMW 6 Series 645Ci/650i/635D Cabrio/Coupe (E63/E64) strut-bars 2010 Audi A4 Quattro (w/

2010 Audi A4 Quattro (w/ EDC)

2018 BMW 3 Series 316i/318i/320i/328i/316D/318D/320D Sedan (F30)

2013 Ford Mustang 4

2018 Dodge Challenger R/T (LC/LA)

Part Number W73420 Part Name Spring Pad Bushing Vehicle 1991-1997 Toyota Land Cruiser Base Chassis Code J80 Color Black Height 30 mm Inside Diameter 112 mm Installation Difficulty Easy Installation Time (hrs) 1

AST Suspension Lowering Springs (30mm/25mm TUV) - 2004-2011 BMW 6 Series 645Ci/650i/635D Cabrio/Coupe (E63/E64) strut-bars 2010 Audi A4 Quattro (w/AST Lowering Springs for the 2004 2011 BMW 6 Series (E63 E64) 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.