Hello H1 driver, for some time now I wanted to give my H1 Travel a K&N replacement air filter. However, the search in all catalogs of K&N, BMC, etc was unsuccessful. This model does not exist in any directory. I then got in touch with the K&N European Tech Support in Eindhoven….and see there; there is actually a matching exchange filter which has in length and width identical mass with the original air filter. It carries the K&N Article number: 33 – 2980 I I just received this air filter and installed it. It fits perfectly. Thanks to Eindhoven. Now you can complete the catalogue with the H1, 2.5 CRDi, 125kW.