AST Suspension Lowering Springs (60mm/60mm TUV) - 1986-1991 Audi 90 2.0E/2.3E/2.3E 20V 5CYL (89) rs-r-best-i-active-coilovers 2004 Mazda Tribute ES

2004 Mazda Tribute ES

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AST Suspension Lowering Springs (60mm/60mm TUV) - 1986-1991 Audi 90 2.0E/2.3E/2.3E 20V 5CYL (89) rs-r-best-i-active-coilovers 2004 Mazda Tribute ESAST Lowering Springs for the 1986 1991 Audi 90 (89) 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. Features