�57mm (2,25 Inch) Charge Pipe Kit for BMW F87 M2 Competition / F80 M3 / F82 F83 M4 with S55 Engine Important product features: - compared to the OEM Charge Pipes, the WAGNER system has a larger flow diameter and no innumerable internal cross-sectional changes, as can be found in the OEM product - this results in 40% less back pressure, which relieves the turbocharger and at the same time ensures better response behavior (see Flow Bench graphic below) - our WAGNER Charge Pipes are made entirely of aluminium and, unlike the OEM product, do not burst under load (high pressure and / or due to age) - the special structure powder coating serves not only to protect against corrosion, but also for OEM optics Kit comes with: 2 aluminium charge pipe (powder coated black) 2 silicone adapter (black) 4 hose clamps stainless steel 1 mounting material