AST Suspension Lowering Springs (60mm/40mm) - 1975-1982 BMW 3 Series 315/316/318/320/323i (E21) whiteline-differential-mount-center-support-bushing 6 Base (N17) are engineered

6 Base (N17) are engineered to be up to the task with top spec

2004 Volkswagen Golf/GTI IV R32 3

2004 Audi A3 Sportback 2

SR5 Chassis Code E90 Bushing Color Black Bushing Material Polyurethane Color Black Grade Type Regular Installation Difficulty Moderate Installation Time (hrs) 3 Kit Contents 8 Bushings

KLC172 and KLC173 - essential to Activate more grip Vehicle Fitment

AST Suspension Lowering Springs (60mm/40mm) - 1975-1982 BMW 3 Series 315/316/318/320/323i (E21) whiteline-differential-mount-center-support-bushing 6 Base (N17) are engineeredAST Lowering Springs for the 1975 1982 BMW 3 Series (E21) 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.