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6 4cyl Chassis Code R57 Drivetrain FWD Lowering Rate - Front 1
2011 Mazda 3 i (BK/BL)
2005 Hyundai Sonata Base (EF)
1995 Geo Metro XFi (M-Platform)
2002 Volkswagen Passat GLS 4 Motion
AST Suspension Lowering Springs (35mm/35mm TUV) - 1986-1994 BMW 7 Series 730i/735i (E32) 911 GT2 6 4cyl Chassis Code R57AST Lowering Springs for the 1986 1994 BMW 7 Series (E32) 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.
