AST Suspension Lowering Springs (20mm/20mm) - 1997-2004 Porsche Boxster (986) F-350 AST Lowering Springs for the

AST Lowering Springs for the 1982-1986 Porsche 944 are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency

1975 Porsche 911 (Incl spindles)

2012 Chevrolet Camaro V6/V8 (Excl ZL1)

2006 BMW X5 4

AST Suspension Lowering Springs (20mm/20mm) - 1997-2004 Porsche Boxster (986) F-350 AST Lowering Springs for theAST Lowering Springs for the 1997 2004 Porsche Boxster (986) 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.