AST Lowering Springs 35mm/25mm BMW 3 Series 330i/335i/325D E90/E92 (ASTLS-17-024) MODEL_E6X The AST 5200 Series Coilovers

The AST 5200 Series Coilovers are a high-performance suspension upgrade designed specifically for the 2012-2015 BMW M3 and M4 models

An installation manual is provided to guide you through each step

This unpainted (primer painted) bumper is intended for professional painting or customization

Whether you're customizing your truck for a bold appearance or seeking improved illumination during night driving

AST Lowering Springs 35mm/25mm BMW 3 Series 330i/335i/325D E90/E92 (ASTLS-17-024) MODEL_E6X The AST 5200 Series CoiloversAST Lowering Springs for the 2006 2013 BMW 3 Series (E90 E92) 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.