So you just purchased a new K&N filter and have no idea how to install it. K&N filters are very easy to install, and are based on each vehicle and how they are setup. The engine is different in each vehicle so location of the filters will be different. K&N oil filters are installed underneath the engine and K&N air filters are installed under the hood, right next to the engine. Installation can be done by anyone with a decent set of tools and some mechanical skills.
The first step to installing your K&N oil filter is to get some jack stands and jack the vehicle up. If you have a truck that sits high off the ground, you may be able to sneak underneath without this step. K&N filters are easy to install and their wrench-off filters include a nut that makes removal even easier. Before removing the oil filter, you must drain the oil first. Find yourself a pan that has high walls to trap the oil so it does not spill. Once you have the oil drained, then you can remove the oil filter and replace it with one of your K&N filters.
You will need an oil filter wrench to remove your current oil filter, which can be picked up at your local automotive store. You should clean off any access oil around the area where the filter screws onto the engine to ensure the best contact and no leaks. You can then hand-tighten it and finish it off with the oil filter wrench. Installing K&N oil filters is basically the same on each vehicle since the location is underneath the vehicle. You can then fill the engine with the proper oil amount, and you are good to go.
Installing K&N air filters is a bit trickier due to each vehicle having the air box or intake in different locations. To locate the air box, open your hood and look for the black box with a hose going into the intake manifold. You may need to remove various components like the battery in order to gain access to the air box. K&N air filters are offered in a few different styles, but the most common are cone filters and OEM replacement filters. Cone filters from K&N filters are for aftermarket performance air intake systems, while OEM replacement filters are a direct drop-in filter for your existing one.
Once you have located the air box, you must remove anything around it that might prevent you from removing the lid. After this is done, the air box lid can be removed from a couple of bolts and clips. Inside the air box is your air filter that you will be replacing. If you look at it carefully, you can see lots of dirt that has had a negative impact on your engine. K&N air filters fit your air box just like this one, but do a better job of preventing contaminants into your engine.
Take the old air filter out and toss it in the garbage because it cannot be reused, unless it is a K&N air filter. Before installing your new filter, all K&N air filters should be oiled with their specific oiling kit. You can then drop the K&N air filter in and put the lid back on. Make sure to tighten up all the bolts and install anything you had to remove in the process.
If you are installing K&N cone filter than there is a little more you need to do. K&N air filters come in different cone sizes and lengths. It is ideal to choose the right one that fits your air intake system and should be chosen on the hole opening. K&N air filters are installed at the end of the air intake pipe and use clamps to attach them. The cone filter slips onto the pipe and the clamp is then tightened around the filter to hold it to the pipe. This ensures it will not slip off while driving and should also be checked from time to time. K&N air intake systems come with the right air filter, so you will not have to worry about selecting the correct size.