I had a set off ebay F&R both fitted perfectly, but 3 of the 4 have split from on catching speed humps. Just bought a set of genuine F&R from TPS for just over £50, which are much shorter than the ebay jobbies. Genuines are far superior in quality, however the fronts fitted perfectly but on the rear the 2 holes don't line up on the GMBH S Line rear bumper. TPS have ordered the only other set listed for A4 B6 to see if they'll fit straight on. Do the Seat ones fit an Avant B6 with GMBH kit?