AST Suspension Lowering Springs (35mm/35mm) - 1983-1989 Alfa Romeo 33 Sprint (905) whiteline-differential-bushings 2004 BMW 5 Series Touring

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AST Suspension Lowering Springs (35mm/35mm) - 1983-1989 Alfa Romeo 33 Sprint (905) whiteline-differential-bushings 2004 BMW 5 Series TouringAST Lowering Springs for the 1983 1989 Alfa Romeo 33 (905) 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.