AST Suspension Lowering Springs (20mm/20mm) - 1997-2004 Porsche Boxster (986) F-350 Shelby GT500KR Chassis Code S197

Shelby GT500KR Chassis Code S197 Bushing Color Black Bushing Material Polyurethane Durometer 85 Grade Type Premium Installation Difficulty Moderate Installation Time (hrs) 1

Part Number ASTLS-14-112 Product AST Lowering Springs Production Years 2003-09/2012 Model Years 2003-2012 Make Audi Model A3 Chassis 8P Approximate Drop – Front 45mm Approximate Drop – Rear 45mm TÜV Certified Yes Model Note - Note 1 Not suitable for 4WD (four-wheel drive) cars

2004 BMW 3 Series 4 Cyl AWD/RWD (E91/E93)

2022 Lexus IS250 RWD

2009 Subaru Forester X Limited

AST Suspension Lowering Springs (20mm/20mm) - 1997-2004 Porsche Boxster (986) F-350 Shelby GT500KR Chassis Code S197AST Lowering Springs for the 1997 2004 Porsche Boxster (986) 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.