Abstract: A suction pipe for the intake air of an internal combustion engine, which has a pressure relieving site in the form a bursting geometry 15 for backfiring impacts in the suction pipe. In the event of backfiring, the sites of weakness 17, 18, 24 fail and the bursting geometry is flung into the buffer volume 14, 14a, as a result of which the energy of the backfiring pressure wave is dissipated. As a result, further damage to the suction pipe is prevented, so that the emergency running properties of the internal combustion engine are retained. The proposed pressure-relieving sites have a high functional reliability, independently of the operating state of the internal combustion engine, particularly of the operating temperature.