AST Suspension Lowering Springs (40mm/40mm TUV) - 1996-2003 Mazda 121 (JASM/JBSM) viair-air-compressors 1991 Mazda RX-7 Base

1991 Mazda RX-7 Base

This Whiteline 16mm fixed position sway bar = more grip = better handling = outright performance - it's the best dollar for dollar handling improvement you can make to your vehicle

Precision Spring Rates — 18 rates (8K to 100K kg/mm) for dialing in your exact suspension feel

1999 Honda Civic Value Package (EK)

2010 Mercedes-Benz E-Class AWD Sedan (W212)

AST Suspension Lowering Springs (40mm/40mm TUV) - 1996-2003 Mazda 121 (JASM/JBSM) viair-air-compressors 1991 Mazda RX-7 BaseAST Lowering Springs for the 1996 2003 Mazda 121 (JASM JBSM) 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.