There are 4 grip clips holding them on to the bumper.
If you take the wheel arch splash guards out on the passenger side you should have an easier time routing your hose, and removing the blanking insert.
This is my only idea for a Induction relocation kit on the Williams that ive had. (Im not doing it, so feel free to copy)
When you have remved the splash guard under the front bumper (passenger side again)...........look at all that space where the existing air hose sucks its air from.
It wouldnt take much to get a samco tube, from the engine, to the other side of the inner wheel arch, and mount a nice cone filter in the space.
No hot air to sap power, and in the best place for DIRECT cold air.
As im so nice.........I will do a drawing for you to show you MY idea.
