AST Suspension Lowering Springs (30mm/30mm) - 2014+ BMW 4 Series 435i/440i/430D Gran Coupe (F36) YMM_2020_2026_Porsche_718_I_982 Precisely tuned exhaust outlets to

Precisely tuned exhaust outlets to produce a deeper

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

or other cargo

Whether you're looking to elevate your car's appearance or add a touch of racing-inspired flair

supporting both aesthetic and aerodynamic improvements

AST Suspension Lowering Springs (30mm/30mm) - 2014+ BMW 4 Series 435i/440i/430D Gran Coupe (F36) YMM_2020_2026_Porsche_718_I_982 Precisely tuned exhaust outlets toAST 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