The HPS Engine Drop-In Panel Air Filter Pre-Oiled/Washable/Reusable HPS-452421 sits in the Air Intake & Fuel department here, stocked and fitment checked.

Regular filter service preserves the performance that an intake upgrade delivers. Transfer sensors gently and keep the sensing element clean.
Buyers comparing the hps engine drop-in panel air filter will find the specification detail on this page rather than in a catalog footnote.
The hps engine drop-in panel air filter listed here is checked against your vehicle before dispatch.
Every hps engine drop-in panel air filter order goes through the same fitment review.
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Stock of the hps engine drop-in panel air filter is live on this page rather than estimated.
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Specifications
- Category: Filter
- Price: $75.87 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
Meet the New 2022 HPS Performance has introduced a new Drop-In Panel Air Filter. This filter is designed for people who value performance and quality. To ensure the highest quality, the product is designed and manufactured in the United States using a proprietary 4-step molding process. Up to 25% more air flow compared to the leading manufacturer. A must-have performance upgrade that increases horsepower and torque while being simple to install.
- Material: Urethane Rubber Frame / Multi-Layer Woven Cotton / Steel Mesh
- Color: White Cotton / Black Frame
- Finish: Pre-Oiled
- Style: Drop-In
- Designed to meet or exceed OE specifications. Perfect fitment with no modification.
- Installs in 5 minutes, Simple upgrade that you can do at home
- Pre-oiled air filtration element, Better filtration to trap more dirt
- Multi-layered woven cotton, Increases air flow resulting in more horsepower and torque
Application:
U.S Models:
For 2006-2007 Subaru B9 Tribeca 3.0L H6 Gas
For 2016-2017 Subaru Crosstrek 2.0L H4 Gas (Except Hybrid)
For 2014-2018 Subaru Forester 2.0L H4 Gas
For 2008-2018 Subaru Forester 2.5L H4 Gas
For 2008-2016 Subaru Impreza 2.0L 2.5L H4 Gas
For 2008-2014 Subaru Impreza WRX / WRX STi 2.5L H4 Gas
For 2008-2009 Subaru Legacy 2.0L 2.5L 3.0L 3.6L H4 Gas
For 2004-2019 Subaru Outback 2.5L 3.0L 3.6L H4 Gas
For 2008-2014 Subaru Tribeca 3.6L H6 Gas
For 2015-2021 Subaru WRX 2.0L H4 Gas
For 2013-2017 Subaru WRX STI 2.5L H4 Gas
For 2013-2015 Subaru XV Crosstrek 2.0L H4 Gas
Non U.S Models:
For 2011-2015 Lancia Thema 3.0L V6 Diesel
For 2008-2017 Subaru Exiga 2.0L H4 Gas
For 2008-2018 Subaru Forester 2.0L H4 Diesel
For 2008-2019 Subaru Forester 2.0L H4 Gas
For 2008-2012 Subaru Impreza 2.0L H4 Diesel
For 2010-2016 Subaru Impreza 1.5L 1.6L H4 Gas
For 2007-2009 Subaru Impreza II 1.5L H4 Gas
For 2008 Subaru Impreza III 1.5L H4 Gas
For 2007-2009 Subaru Impreza II III WRX / WRX STi 2.0L 2.5L H4 Gas
For 2003-2014 Subaru Legacy 2.0L H4 Diesel, 2.0L 2.5L 3.0L H4 Gas
For 2014-2019 Subaru Levorg 1.6L 2.0L H4 Gas
For 2010-2017 Subaru Liberty 2.5L 3.0L 3.6L H4 Gas
For 2009-2014 Subaru Liberty Exiga 2.5L H4 Gas
For 2008-2017 Subaru Outback 2.0L H4 Diesel
For 2005-2013 Subaru Tribeca 3.6L H6 Gas
For 2012-2014 Subaru WRX 2.5L H4 Gas
For 2012-2017 Subaru XV 1.6L 2..0L H4 Gas, 2.0L H4 Diesel
Remark:
Installation:
Product Content:
- 1 x Panel Air Filter
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- AC Delco A3109C, BMC FB56520, Carquest 88914, Carquest DW88914, Carquest R88914, Champ Labs. AD3984, Chrysler 04861688AA, Fram CA9997, Lancia 04861688AA, Luber-Finer AD3984, Mann-Hummel C2201, Mann-Hummel C22029, MicroGard MGA46914, MicroGard MGA49012, Mobil MA3984, Premium Guard PA5592, Purepro A5592, Purolator A35592, Repco RAF285, Ryco A1527, STP SA9997, Service Champ AD5592, Simota OSU002, Subaru 16546AA090, Subaru 16546AA10, Subaru 16546AA10A, Subaru 16546AA120, Subaru 16546AA12A, Subaru 16546AA90, Subaru 46051FG000, Valvoline VA198, WIX 46914, WIX 49012, Warner WAF3984, Wesfil WA1184
Ask before you order and the only surprise on installation day is how smoothly it goes.
Continue browsing: Air Intake & Fuel · HPS HPS-4330 Preoiled 2Layer Crankcase Vent Air Filter Breather 1″ ID · HPS HPS-4329 Preoiled 2Layer Woven Cotton Air Filter 3.25″ ID · full catalog
You get honest delivery estimates rather than optimistic ones, quoted live for your address.
If you want independent guidance before ordering, the Car Care Council maintenance tips is a useful reference.
Frequently asked questions
How do I know this is the right part?
Trim level, engine option and drive type decide most fitment questions. Send those three details or the VIN and we will check them for you.
How fast does this ship?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
What if it does not fit?
Report any transit damage with a photo and we will send a replacement or refund you. We handle the carrier claim ourselves.
How do you verify this part?
We confirm sensor housing and coupler sizing on intake orders before packing.




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