Apexi Panel Filter

Part #: APE 503-N101
( 19 reviews )


MSRP: $35.00


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Return Policy | Shipping



Brand: Apexi
Filter Color: Black
Filter Element Type: Dry
Filter Material: Cotton
Filter Reusable: No
Mfgr. Warranty: 1 year
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.


Subaru Impreza
WRX STI 2004, 2005, 2006, 2007WRX STI Limited 2007WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007Base 1993, 1994, 1995L 1993, 1994, 1995, 1996, 1997, 1998, 1999LS 1993, 1994LX 1995, 1996Outback 1995, 1996, 1997, 1998, 1999Brighton 1996, 1997RS 1998, 19992.5i 2006, 2007Outback Sport 2006, 2007
Subaru Legacy
Base 1990, 1995L 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999LS 1990, 1991, 1992, 1993, 1994, 1995, 1996LSi 1991, 1992, 1993, 1994, 1995, 1996, 1997Sport 1991, 1992, 1993, 1994Touring 1994GT 1994, 1996, 1997, 1998, 1999Alpine Sport 1994Sun Sport 1994Outdoor 1994Brighton 1995, 1996, 1997, 1998, 1999Outback 1995, 1996, 1997, 1998, 1999Postal 1995, 1996, 1997, 1998Outback Limited 1997, 1999GT Limited 1998L 30th Anniversary 1999Limited 30th Anniversary 1999SUS 30th Anniversary 1999
Subaru Forester
Base 1998, 1999, 2000L 1998, 1999, 2000S 1998, 1999, 2000XT 2004, 2005X 2005, 2006, 2007, 2008XS 2005XS L.L. Bean Edition 2005XT Premium 2005X L.L. Bean Edition 2006, 2007, 2008XT Limited 2006, 2007, 2008Sports 2.5 X 2008Sports 2.5 XT 2008
Subaru Outback
L.L. Bean 2001, 2002, 2003, 2004VDC 2001, 2002, 2003H6 2002, 2003, 2004H6 35th Anniversary Edition 2004H6 VDC 2004
Subaru SVX
Saab 9-2X
Linear 2005Aero 2005, 20062.5i 2006
Infiniti G20
Infiniti G35
Infiniti I30
Infiniti I35
Base 2002, 2003, 2004
Infiniti J30
Infiniti M30
Base 1990, 1991, 1992
Nissan 810
DX 1981
Nissan 200SX
Nissan 240SX
Nissan 300ZX
Turbo 1988
Nissan 350Z
Performance 2003, 2004, 2005Enthusiast 2003, 2004, 2005, 2006Touring 2003, 2004, 2005, 2006Track 2003, 2004, 2005, 2006Base 2003, 2004, 2005, 200635th Anniversary Edition 2005Grand Touring 2005, 2006
Nissan Maxima
Nissan NX
Nissan Sentra
Nissan Stanza

Apexi  is a household name in the world of JDM aftermarket products, and  have made go fast parts employed by some of the fastest cars in motorsports. So you can trust Apexi even when it comes down to a simple panel filter for your vehicle.

The Apexi panel filters are a dry cotton style filter that offers a lot of surface coverage for the most effective filtration as possible. This filter is ideal for those of you who may not want to opt for an aftermarket cold air style filter just yet. The Apexi panel filter will out-perform, and out-filter your factory panel filter which will provide better horsepower, fuel economy, and torque

REVIEWS ( 19 )


Verified Purchase
Air filter
Jesse S. 6 months ago
It seems like a well built air filter and I like that it is a dry filter.

Père Foura 1 year ago
Perfect fitment, and way better than a K&N filter with the dirty oil that mess up the maf sensor! 5 Star!

Perfect Fit
zombirdy05186 1 year ago
This filter fits my 1986 300zx Z31 n/a. After doing some research I found out that the earlier Z31's used an identical airbox as the 1988 Z31 but a different model filter (Every Z31 used the same airbox but a different model air filter which in reality were all the same). So technically this air filter should fit all 300zx Z31's before 1988. Or any Z with a 16500-01P00 model air box.

Awesome replacement
geraldo787b 1 year ago
When its time for you to replace that panel filter, I'd recommend this one. Fits nice and just from the change the throttle feels so much lighter on the engine. Overall smoother drivability. Also ordered it on Monday and received it today! (Wednesday)

Easy Install, Easy Upgrade
Luke.Cariveau 2 years ago
Took 5 minutes to drop in. why not? Do it.


  • AnswerQ: Is oil needed   Anthonysti 2 years ago

    Do you have to oil it before install like the k&n one or is it just a drop in without oil

    • A: This will be a dry filter.

      Kyle A. 2 years ago

  • AnswerQ: Lifespan?   Cole Matthews 2 years ago

    Just installed it tonight on my 2002 WRX sedan. Fits perfectly and has worked great so far. I live in south Florida and it is my daily driver. How many miles can I expect out of this filter? No auto-x or track or anything, just some spirited driving here and there :) thanks. I presume around 4k?

    • A: Really Depends on your location, but I would check it every oil change to be sure.

      Kyle A. 2 years ago

  • AnswerQ: Micron Rating? Lifespan?  pocketdrummer 4 years ago

    What is the micron rating? Recommended lifespan?

    • A: Apexi does not post up the Micron Rating on these filters. Lifespan will simply depend on how/ where the car is being used. A city car vs a car driven on farm roads can have a filter get dirty 3-5X as fast just given the environment the vehicle is used in.

      Kirill C. 4 years ago

  • AnswerQ: Will this filter work on my car?  hhhp 5 years ago

    Hi i have a 2007 subaru impreza 2.5i and i want to replace its stock air filter. In the owner's manual it says that the stock filter has oil on it so given that this Apexi is a dry filter i was wondering if it will not cause any unwanted effects on the air sensor or the intake system. Thank you

    • A: Great question! The reason the stock filter has an oil on it is because it is a wet designed filter. This one is a dry, as you stated. We have many many customers running this filter with zero downsides! There is no unwanted effects on the air sensor.

      Sterling W. 5 years ago