From IAME USA:
Recently we have discovered that there have been a very small number of airbox tubes for the Mini Swift that were produced outside the specifications defined on the factory fiche document. The overall length is too short.
Some of these have made their way into the U.S. market and have been discovered in several areas (race events and inventory).
We apologize for this error and for any problems this may have caused. For those that may have received these non-compliant tubes, we will be offering an exchange program throughout U.S. distribution network. We will also insure there are replacement tubes available at the remaining major events.