BMW G26 4-Series Gran Coupe / i4 3D Design M-Sport Carbon Fiber Rear Diffuser Downpipes the design of the inner

the design of the inner neck of the ARM air filters has been molded in a conical shape to further increase airflow by reducing resistance as air is being transferred from the filters to the aluminum adapters before finally entering the turbo inlets

5" laser engraved black ceramic tips with Dinan logo

In combination with an Alpha N remap (not included)

transient response and induction sound

Lighter weight than factory system

BMW G26 4-Series Gran Coupe / i4 3D Design M-Sport Carbon Fiber Rear Diffuser Downpipes the design of the innerFounded in 1998 with a focus on suspension components, 3D Design is renowned for their line of BMW aero parts and accessories. From inception, 3D Design has worked diligently to expand their product line and with great success has created a wide range of parts and accessories for the BMW enthusiast. 2012 marked the expansion of their lifestyle accessories and interior components as well as the introduction of suspension to the export markets. 3D