The factory inlet to the air box draws air from just behind the headlight down into a Y piece with a large air box underneath then back up into the filter box.

The STI fog light covers have a useful grille section on them though that I thought could be used as a nice cold air intake for the air filter box. So I had a look at how that could be done.

Inner wing panels removed to take a look.

Large box and Y piece removed. That’s the dirty side of the air filter there. So just need a feed from the fog light cover to that.

Behind the fog light cover.

I came up with a plan and ordered some parts. A black anodised aluminium trumpet some large ducting and jubilee clips.

This is the Y piece that takes the air from the original inlet behind the headlight, onto the air filter box with a large closed box underneath.

Lower part of the Y piece cut down.

You can see the bottom of the Y piece just through there.

A plate to hold the trumpet just behind the fog light cover.

A very rare picture of me.

Plate painted black for stealthiness, hence getting a black trumpet too.

Air ducting connected from the trumpet to the Y piece back in it’s original position.

Should do the job, nice and stealthy too.

Inner wings all back in place.

Job done and back on the ground.