If it is a disco Tdi take a close look at the turbo snail housing, circlip and wastegate actuator before you go chopping the inner wing to fit it in. I discovered that it is really easy to turn the housing round to a better angle and drill and tap new holes for the wastegate bracket. Itis a much neater solution than hacking the wheel arch apart and exposing the turbo to all the crud that comes from wheel arches.