AST Suspension Lowering Springs (30mm/30mm) - 2014+ BMW 4 Series 435i/440i/430D Gran Coupe (F36) YMM_2020_2026_Porsche_718_I_982 This exhaust system features a

This exhaust system features a central muffler with valves on both sides ‒ with valve housings cast in-house ‒ to regulate the gas flow before it exits through two pairs of attractive double round handmade carbon-fiber tailpipes that contain acoustic reflectors to deliver enhanced sound to the passenger cabin

this front lip combines strength with a refined aesthetic

supporting both aesthetic and aerodynamic improvements

No additional parts or modifications required

enabling you to tailor your vehicle's acoustics to match your mood or driving environment

AST Suspension Lowering Springs (30mm/30mm) - 2014+ BMW 4 Series 435i/440i/430D Gran Coupe (F36) YMM_2020_2026_Porsche_718_I_982 This exhaust system features aAST Lowering Springs for the 2014+ BMW 4 Series (F36) 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