Remove air filter completely and the ducting up to the turbo (you'll probably find it cracked and brittle where it joins the turbo). There's also a mounting plate under the filter box, that goes too.
As you can see the air filter is already out.Just to give you a clue, the turbo intake can be seen top left,bottom left is the relay box that attaches to the battery and bottom centre is the mount for the gearbox (with centre bolt replaced).