- WRX
HKS
HKS Super Hybrid Panel Air Filter
2015+ WRX / 2015+ STI / 2014+ Forester
This HKS filter is designed to be a direct replacement for the OEM filter. The hybrid model features a 3 layer dry filter. The filter element is bonded to a flexible nylon frame and offers a price-friendly performance alternative to a full intake system. NOTE: Will NOT fit 2018+ STI Type RA or 2019+ STI. This filter does fit 2018+ STI.Details
This HKS filter is designed to be a direct replacement for the OEM filter. The hybrid model features a 3 layer dry filter. The filter element is bonded to a flexible nylon frame and offers a price-friendly performance alternative to a full intake system.
Authentic HKS part.
Featured in $1000 Product Showdown
4 customer reviews
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quick and easy install
By yat December 16, 2019install was easy. just take out the old one and install this one. took me less than 5 minutes. fitment was excellent. i couldn't tell if there's more power after the install but there was a slight difference in the sound. overall very satisfied with this mod.
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Perfect replacement
By Richard July 28, 2017Installation took 2 minutes. No issues running lean or anything related to needing a tune like some forums may say. This product is a steal for $40! And the box design is dope too.
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Breathability
By Bruce March 17, 2017The HKS filter fit easily into the stock airbox. However, make sure you have the proper filter orientation. The filter is rectangular, not square. Just had to turn the filter 90 degrees to get the right fit. Seemed my WRX accelerated a bit smoother but the stock filter was pretty well filled with dust. Since I bought the car used, it may have been the stock filter. Nevertheless, I like the way my car is running now!
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Cleans air!
By Scott February 27, 2017Cleans air going into the car and comes in a really nice box.
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So far so good.
By B April 8, 2015My Car: 2015 STI. I was in need of a new filter and didn't want to upgrade the whole intake system yet so I started looking into drop ins. I scoured many sites and forums looking for the best one and this is what I discovered: A. From what I have seen you don't want an oiled filter as it can cause MAF issues. Which leaves dry filter elements like the HKS Super Hybrid. 2. I saw many dyno comparisons and it seems like all of the aftermarket drop in filters will produce about 5 HP. Personally, I wanted to try a new filter to see if I could get any more sound out of it. I don't think this is something you should do if you are looking for power, but it does help the car breathe. It should be noted that when I did take the stock filter out, it was absolutely filthy. So for what its worth, I think it did its job very well, but also kind of demonstrated how much debris can actually hit the filter of these cars (my first STI). As far as sound, don't expect too much. In the higher ranges of the RPMs it seems like I can hear a bit more of the turbo and its accessory parts but any other sound its potentially making is muted by the exhaust. At this point, a few weeks into it, I have no reason to not recommend this product. I kind of like the 3 different foam layers and I am interested to see how well it works, I will try to update this in the future with pictures. Install was easy and it fit in the intake housing very well, no wiggle room for crap to sneak by. Performance notes: A few days prior to the intake showing up I installed Invidia N1 exhaust. After installing the new filter I noticed my 'Peak PSI' jumped from about 17.0 to 18.1. Not sure if this is because of the combination of mods, climate/driving conditions or just the new filter, but it seemed worth noting in the review. Hope this helps!
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