AST Suspension Lowering Springs (30mm/30mm) - 1990-1992 Alfa Romeo 33 16V (907) 1984 2013 Lexus IS350 RWD (GSE31)

2013 Lexus IS350 RWD (GSE31)

2001 Audi A6 Quattro Sedan Wagon (4B/C5)

1985 Mazda 626 LX (GD)

RS-R Down Sus lowering springs for the 2015-2017 Lexus NX200t / drop the car into a cleaner

AST Suspension Lowering Springs (30mm/30mm) - 1990-1992 Alfa Romeo 33 16V (907) 1984 2013 Lexus IS350 RWD (GSE31)AST Lowering Springs for the 1990 1992 Alfa Romeo 33 (907) 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.