AST Suspension Lowering Springs (80mm/60mm) - 1979-1983 Volkswagen Jetta GTI 1.6/1.8 (MK1/17/17CK) DB9 2019 Subaru BR-Z (ZC6)

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AST Suspension Lowering Springs (80mm/60mm) - 1979-1983 Volkswagen Jetta GTI 1.6/1.8 (MK1/17/17CK) DB9 2019 Subaru BR-Z (ZC6)AST Lowering Springs for the 1979 1983 Volkswagen Jetta (MK1 17 17CK) 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