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2015 BMW 4 Series Gran Coupe 428i/430i AWD (w/ EDC)
2020 Audi S4 (B9) AWD
2002 BMW M3 Coupe Convertible 3
2016 Audi S4 Quattro (w/ EDC)
2010 BMW 3 Series RWD (E90/E91/E92)
AST Suspension Lowering Springs (55mm/40mm TUV) - 1988-1995 BMW 3 Series 4CYL Touring (E30) 9-3 2015 BMW 4 Series GranAST Lowering Springs for the 1988 1995 BMW 3 Series (E30) 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.
