AST Suspension Lowering Springs (40mm/25mm TUV) - 2006-2013 BMW 3 Series 330D/335D Coupe (E90/E92) YMM_1972_1981_Bmw_5_Series_I_E12 Upgrade your BMW 128i with

Upgrade your BMW 128i with the ACT XACT Streetlite Flywheel for improved response

Installation instructions and technical specifications

Robust construction to withstand demanding driving conditions

Corrosion-resistant coatings for longevity in various conditions

Proper alignment and secure attachment are essential for achieving the best appearance and durability

AST Suspension Lowering Springs (40mm/25mm TUV) - 2006-2013 BMW 3 Series 330D/335D Coupe (E90/E92) YMM_1972_1981_Bmw_5_Series_I_E12 Upgrade your BMW 128i withAST 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.