AST Suspension Lowering Springs (30mm/30mm) - 2011-2015 Kia Optima 1.7CRDi/2.4 (TF) whiteline-sway-bar-link The ST X Coilover Suspension

The ST X Coilover Suspension for the 2011-2013 Volkswagen Jetta Sedan SE SEL 2

2009 Toyota Highlander Base

The Stance XR1 coilovers for the 1997-2005 Porsche 911 (996) are the single-way adjustable

1994 Mitsubishi 3000GT RWD (Z11A)

2006 Chevrolet Corvette C6 (w/ EDC Incl leaf spring removal)

AST Suspension Lowering Springs (30mm/30mm) - 2011-2015 Kia Optima 1.7CRDi/2.4 (TF) whiteline-sway-bar-link The ST X Coilover SuspensionAST Lowering Springs for the 2011 2015 Kia Optima (TF) 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.