Park on level ground and disconnect the battery's negative terminal. Jack up the front and support it on stands, then remove the inner guard (fender) liner on the driver's side.

Lift the bonnet, unplug the air flow sensor and remove the airbox. Use a large flat screwdriver to undo the clamp on the hose that runs to the airbox, and take the hose off.

Unclip the hose from the washer bottle and push it back as far as it will go. Tape it well away from the area you're about to cut so it can't be damaged.

Mask the guard, A-pillar and bonnet edge around the snorkel area to protect the paint while you mark, drill and cut.

Unroll your template. It's packed in the box with the snorkel. Check the label in the corner shows your vehicle and snorkel size (e.g. AMAROK 4.5" DS) before you go any further.

Trim along the two edge of guard lines. Then cut out the hole along the solid black line, but leave the strip between the dashed lines. It holds the template together.

Line up the top trimmed edge with the gap between the bonnet and guard, and the side edge with the gap between the door and guard.

Hold it in place with magnets while you line it up (we recommend them). No magnets? Masking tape works too. Keep it flat and don't stretch it.

Trace around the inside of the hole with a fine marker, and mark the middle line shown on the template too.

Remove the template and join up the line across the gap left by the strip.

Drill a few holes just inside the marked line. They give the saw blade somewhere to start.

Cut one half of the hole only, up to the middle line, with an air saw.

Reach in through the half you've cut and push the washer bottle hose as far away from the rest of the cut as you can. Make sure it's out of the cutting area before you carry on.

Cut the remaining half of the hole along the marked line.

The Amarok has three cuts: the outer guard, the inner skin just behind it, and the inner guard (done later for the hose).

Use a marker to trace the hole onto the inner skin, and make sure the cut carries on past the dotted line. Watch the washer bottle hose again.

Cut the inner skin along your marked line.

Clean away all metal filings. Paint both bare edges with touch-up paint, or spray them with lanolin if you don't have paint.

Press the 600 mm thin pinch weld around the outer guard edge and the 500 mm thin pinch weld around the inner skin. The 500 mm thick pinch weld is for the inner guard hole later.

Fix the A-pillar bracket to the snorkel with two M5 bolts (3 mm Allen key).

The side of the bracket with three holes must face the same way as the snorkel's entry into the guard.

Fit it with the CANNA FAB logo facing out so it reads the right way: three bolts go to the car and two to the snorkel.

Feed the snorkel into the guard hole. Line up the top of the bracket with the pinch weld (door seal flange) on the A-pillar.

Set the bracket as far back and down as you can, but make sure the door still opens and closes freely. Then trace around the bracket onto the pillar.

Remove the snorkel and unbolt the bracket. Hold the bracket inside your traced outline and mark the centre of each of the three slots.

Double-check the spacing: 50 mm between holes, 100 mm end to end.

Drill a 9 mm hole at each mark. Touch up the bare metal.

Put a dab of weather-rated Sikaflex or marine silicone in each hole. It stops water leaking into the pillar.

Set the M6 rivnuts from the bolt bag with a rivnut tool, then bolt the bracket to the pillar with the M6 bolts (4 mm Allen key).

With the airbox out, cut a hole through the inner guard for the intake hose. Use a hole saw one size up from the 3" flexible hose.

Paint the bare edge, then fit the 500 mm thick pinch weld.

Refit the airbox and plug the air flow sensor back in. Fitting a CannaFab airbox? Install it now using its own guide.

Fit the 3" outlet adapter to the snorkel if it isn't already on. Run the 800 mm flexible hose inside the guard from the snorkel outlet, through the inner guard hole, to the airbox inlet, with a clamp at each end. Keep it clear of sharp edges.

Fit the snorkel through the guard and bolt it to the bracket with the two M5 bolts. Connect the flexible hose to the snorkel outlet.

Tighten both hose clamps. Refit the washer bottle hose and the inner guard liner.

Peel off the masking tape, lower the vehicle and reconnect the battery. Start the engine and check there are no warning lights.