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2015 Chevrolet Corvette Stingray (C7)
1992 Nissan Maxima SE (J30)
2005 Audi A3 AWD/FWD (8P)
2016 BMW 3 Series Wagon (F31)
Part Number 4F915R Part Name Swift Spec-R Lowering Springs Vehicle 2015-2021 Subaru Impreza WRX Chassis Code VAG Spring Rate - Front 6 Kg/mm Spring Rate - Rear 7
AST Suspension Lowering Springs (20mm/20mm TUV) - 2010-2018 Audi A1 Hatchback 1.0TFSi/1.2TFSi (8X) Protege 2015 Chevrolet Corvette Stingray (C7)AST Lowering Springs for the 2010 2018 Audi A1 (8X) 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. Features
