AST Suspension Lowering Springs (50mm/50mm) - 2001-2009 Volkswagen Polo 1.4TDi/1.9SDi/1.9TDi (9N) EVO 8 The KSport Airtech Pro Plus

The KSport Airtech Pro Plus Air Suspension Kit is the top-tier air-ride system for the 2007-2013 MINI Cooper

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AST Suspension Lowering Springs (50mm/50mm) - 2001-2009 Volkswagen Polo 1.4TDi/1.9SDi/1.9TDi (9N) EVO 8 The KSport Airtech Pro PlusAST Lowering Springs for the 2001 2009 Volkswagen Polo (9N) 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.