Mine didn't actually come with instructions, it is more of a parts diagram.
First off the box is really hard to get to fit. Remove the two front engine cover bolts and then pull the engine cover off being careful not to break the two posts that hold it in the back.
Remove the stock intake tube and just unhook the connection to the maf sensor and leave it in the tube for now.
Remove the bolt at the top of the stock air box that attaches to the brack booster (think that is what it is). Remove the the other below the filter. There is a third is directly behind the washer resevoir. Pull the stock box up firmly and the bolt will slip through the box and you can remove the bolt.
Make sure to clean the inside of the box out really well. Mine was pretty dirty. Put the thicker gasket with the new intake around the side hole that lines up with hole in the truck and put the thinner gasket around the opposite side hole that the intake tube comes out of. Make sure they don't come off when installing. My larger gasket was short about 1/2" that both ends didn't meet. Don't know if that was intentional or not.
There is a hole in the bottom of the intake to attach things like a ram air tube to. It comes with a cap for this. I put a large wire tie around this because it kept coming off while I was trying to install it.
According to the paper it is an 8mm stud and it is supposed to go in the hole closest to the washer resevoir. Then the rubber bushing goes on top of it and under the intake box with the large opening down. I would get one more stud like that and three more nuts and washers and another rubber bushing because it only comes with one and there is room under the second hole for another. I would put the stud in a few threads and then put a nut on it, then the bushing. The box goes on top of that and then a washer, lock washer and another nut. The bolt that it comes with for the second hole isn't really long enough. I actually had to bend the top bracket that the stock box was bolted to so that the box would fit. The hole that matches up from the box to the fender doesn't line up exactly and volant told me when I called that it wouldn't but me and a few others have contacted them over the fitment. It still seals though.
There is a rubber reducer that goes over the throttle body. Put it on and put the supplied clamp on it.
Take out the maf sensor from the stock intake tube. Be very careful and don't hit it or get anything on it or anything else, (very very delicate). Make extra sure to pay close attention on how it comes out, it has to go in the new tube the same way. Pay attention and put the new gasket for the maf sensor on it and then put the sensor in the new tube and mark the holes. Drill the holes with a drill bit that is smaller than the supplied screws. Now make sure and clean the intake tube out really well because it was filthy. Put the maf sensor in the tube with the gasket using the supplied screws. If it isn't put back in right, the truck will now run right.
Put the larger end of the tube in the box and connect the other end to the reducer that is attached to the throttle body and tighten it with the supplied clamp.
Attach the big end of the tube to the filter and tighten the clamp around them. Make sure that the rubber boot on the filter fills up the hole in the box and the clamp goes on the outside of the box.
It comes with two 5/8" breather hoses and straight fittings. You could either use wire ties or hose clamps to put on these. If you want to add this, you will need to get four. Hook up the maf sensor now.
I don't think I forgot anything. I didn't take any pics when I did the install but I will try to take a few tommorow of what I can without removing anything.