N54 Charge Pipe For BMW 535i (E60 E61) With Tial Flange Option - ARM MotorsportsIf youre running more than stock boost on your BMW 535i or 535xi with the N54 engine, the factory plastic charge pipe becomes a weak point. It can crack or burst under pressure and the stock diverter valves often leak, limiting your power. The ARM Motorsports E60 N54 Charge Pipe solves this by replacing the factory plastic pipe with a high flow, TIG welded 6061 aluminum pipe built to handle the highest levels of boost. Designed to work seamlessly with