MFG# 7B2212 DESCRIPTION The COBB BMW N55 Charge Pipe both increases flow and improves the reliability of your turbocharged BMW. The 3" mandrel bent aluminum pipe replaces the brittle factory plastic pipe which can fail under increased boost pressure. The increased piping size helps to reduce turbulence and maximize flow into the engine.Note: You may need to source a new O-Ring (P/N 13717568031) and possibly a new C-Clip if yours are missing or damaged as they are not included with this kit.**Will not fit F-chassis vehicles.** WHY? Free up airflow and improve the reliability of your N55 powered BMW. FEATURES BMW N55 Black Charge Pipe 3" Mandrel Bent Aluminum Tubing Wrinkle Black Powder Coat Finish 4-Ply Silicone Couplers OEM Replacement Increased Flow