DIY: AEM Dryflow air filter cleaning! It could add a horsepower!

Whats better than a slight operation gain off your air filter? 1 that is easily cleaned and reusable throughout the lifetime of your vehicle! Seeing equally my two Subarus won't see whatever further gains from a aftermarket intake I wanted to find a reusable air filter. My STi came equipped with a Yard&N filter just as nosotros know the oiled filter often exit oil particles on the MAF sensor, which can cause incorrect MAF readings that won't allow your engine to run every bit optimally.

Find that old air filter and drag it out of its home! Time for your yearly bath. The filter we are cleaning is for our 2012 Subaru Impreza, Aem dryflow filter.

With this said, I establish AEMs Dryflow filters my savior, the only downside was that they did not offering whatever for my Forester or STI. So with a bit of cantankerous referencing I found that many filters used in Nissan vehicles are too used in Subaru models. Therefore they will/should fit given their similar dimensions. Last year I noticed they did decide to release Subaru specific filters for my 06 Forester XT and 05 STi, I have purchased one to run across how they differ.

The old and the new AEM dryflow filters together. The upper is the 350z filter that fits right into the Subaru box which I made work for the last 4 years. Now, Aem offers a Subaru option made for mid 2000 Subarus.

The sometime and the new AEM dryflow filters together. The upper is the 350z filter that fits correct into the Subaru box which I fabricated piece of work for the last four years. Now, Aem offers a Subaru selection made for mid 2000 Subarus.

A list of many of the fitments for your Subaru! The 06 Forester isn't listed but it fits fine, it was purchased for my 05 STi.

Now let us get down to business… we demand that one horsepower back! If you would like you can use a apartment head screwdriver to aid loosen the intake hose and to help the release the clips property the air box together. Finger can exist your support if this method didn't work or you have misplaced all your screwdrivers when doing other projects and failed to return them.

Showtime we will remove your air filter. For all 3 of the Subarus in my stables I can apply my hand to release the clips that sandwich the air box together.

Working on the workhorse Subaru Impreza today. Opening up the airbox and removing the contents.

Working on the workhorse Subaru Impreza today. Opening upward the airbox and removing the contents.

With the air filter removed we can spray information technology downwardly with the Aem dryflow spray. You will just need to spray the filtering side of the filter. i.e the side that has all the clay, bugs, grass, etc in it.

Here is the magic sauce, this will clean up your bugs, dirt, leaves etc. Aem Dryflow cleaner

Now allow it to sit down and soak in.

Soaking in and releasing the grossness.

Soaking in and releasing the grossness.

Next we will take the filter to our source of water and spraying through the elevation side of the filter we volition help loosen upward the residuum of the stuck debris inside the filter pleats.

Hanging out among the dishes. The water should flow from the clean side (closer to the throttle body) to the outside (where all the dirt gets filtered on).

Hanging out amongst the dishes. The water should flow from the make clean side (closer to the throttle body) to the outside (where all the dirt gets filtered on).

The side by side stride is based upon how fast or irksome yous would similar your filter to dry. In irksome mode nosotros will simply set up the filter out for about 24 hours and it should exist dry. You can check it by lightly borer information technology on the footing and looking for water droplets. Now you volition wave it upwards and downward very speedily to brand sure there is no stored away h2o, the terminal thing y'all need is your engine ingesting water and causing engine issues. If it checks out to be dry you will be finished.

Slapping the filter onto the ground will help the quicken up the drying process. While knocking the loosened debris out.

Slapping the filter onto the ground will help the quicken up the drying process. While knocking the loosened debris out.

If you are looking for a faster approach you can use compressed air to help button the water out. I recommend spraying the air through the top side, this will assistance anything deeply lodged items to exit your filter. In one case yous have checked it once again with the above steps for trapped water. You tin can put it back in and go on your mode.

Remember your engine is a behemothic glorified air pump and whatever left over h2o will be sucked in with much strength. So make sure it is admittedly dry earlier reinstalling it. Irreversible engine damage can happen if your engine attempts to consume water.

Congratulations! Yous take completed your air filter cleaning and can proceed for another 15k miles or 1 year, whichever comes first! Perhaps your i horsepower has too returned.. perhaps even ane.five hps or more! Just another maintenance pace to helping your engine final long and run smoothly.

Amazon part links

05-07 STi and 04-08 Fxt Aem dryflow filter 28-20232

AEM Dryflow cleaner

2012 Subaru Impreza Aem dryflow filter.