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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
SB9-XTG4 kit features an Xtreme pressure plate for the most demanding driver
helping to extend the lifespan of your suspension system
The key features include: Progressively wound coil springs for smooth ride and improved handling
The hubs are crafted from high-strength materials with reinforced structural features to enhance durability and reliability
AST Suspension Lowering Springs (25mm/20mm TUV) - 2005-2012 Alfa Romeo 159 2.4JTDM (939) Exclusive - 2015-2023 Ford Mustang SB9-XTG4 kit features an XtremeAST Lowering Springs for the 2005 2012 Alfa Romeo 159 (939) 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.
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