Apexi Panel Filter

Part #: APE 503-F101
( 9 reviews )


MSRP: $45.00


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   In Stock: Ships the Same Day
Return Policy | Shipping



Brand: Apexi
Filter Color: Red
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 Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 2014Outback Sport 2008, 2009, 20102.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 20102.5i Sedan 2008, 2009, 2010, 20112.5i Hatchback 2008, 2009, 2010, 20112.5i Premium Sedan 2010, 20112.5i Premium Hatchback 2010, 2011
Subaru Legacy
i 2005GT Limited 2005, 2007, 2008, 2009Limited 2005GT 2005, 2006GT spec.B 2006, 2007, 2008, 20092.5i 2006, 2008, 2009, 2010, 2011, 2012, 20132.5i Limited 2007, 2008, 2009, 2012, 20132.5i Special Edition 2007, 20083.0 R Limited 2008, 20093.0 R 20093.6R 2010, 2011, 2012, 20132.5GT 2010, 2011, 20122.5i Premium 2012, 20133.6R Limited 2012, 20133.6R Premium 2012
Subaru Forester
XT 2009X 2009, 2010, 2011, 2012X Limited 2009, 2010, 2011, 2012X Premium 2009, 2010, 2011, 2012XT Limited 2009, 2010XT Premium 2010, 2011, 2012, 2013X Touring 2011, 2012XT Touring 2011, 2012, 2013
Subaru Outback
i 2005XT 2005, 2006Limited 2005XT Limited 2005, 2007, 2008, 2009R 2005, 2006VDC Limited 2005R L.L. Bean Edition 2005, 2006, 2007, 20082.5i 2006, 2007, 2008, 2009, 2010, 2011R VDC Limited 20062.5i Limited 2006, 2007, 2008, 2009, 20102.5i Basic 20072.5i L.L. Bean Edition 2008Base 20082.5i Limited L.L. Bean Edition 20083.0 R Limited 20092.5i Premium 20103.6R 2010, 2011
Subaru Tribeca
Base 2006, 2007, 2008, 2009Limited 2006, 2007, 2008, 2009, 2010Premium 2010Touring 2010
Subaru WRX
Base 2015Limited 2015Premium 2015
Subaru WRX STI
Base 2015

The Apexi Power Intake Panel Filter is a stock replacement air filter. Increase airflow and filtration over the stock unit with this maintenance free dry apexi filter.




Good Price, Easy Install
austinbeachy77349 4 months ago
Installed on my 08 LGT spec B, easy installation, no worries about oiling the filter. Acceleration after install was much smoother, and had better turbo sound.
Verified Purchase
Not what I thought
J_Pipe 1 year ago
Made well. Great look but you never see it once it's installed so it really doesn't matter. Car doesn't run any different. Same gas mileage as OE. OE made more sound (I wanted aftermarket intake sound without having to tune) and is almost half the price. Save your money.
Verified Purchase
Excellent filtration without the oily mess.
joejoe69 2 years ago
I have used APEXi filters for years from their dual funnel Power Intake to a few of these drop in panels. Their filtration capabilites are awesome and you don't have to worry about oiling them, which is detrimental to MAF equipped engines.
Verified Purchase
Great Product
Brocks003k17867 2 years ago
Filter looks much better than OE and fitment was great.
Verified Purchase
APEXi air filter
jerrylewis65371265 2 years ago
this is a great product. great gas mileage


  • AnswerQ: tune or no tune?  raymondravarra40571 5 months ago

    I know it would be beneficial, but would it hurt my engine at all if I did not tune it?

    • A: We always recommend a tune for 08+ WRX/STI. If you decide to run it without a tune we are unaware of what problems could occur.

      Trevor C. 5 months ago

  • AnswerQ: Tune or no tune?  raymondravarra40571 5 months ago

    I have been getting mixed answers. some say yes, some say no. Which is it? I drive a 2011 wrx.

    • A: Technically a tune would be beneficial, but not required.

      Nick S. 5 months ago

  • AnswerQ: How long will it last  Subirista 3 years ago

    So i know this filter isn't reusable. But how long or how much mileage should it last?

    • A: Unfortunately Apexi does not release any information on the specific mileage that this filter will last. I would recommend following manufacturer guidelines on replacement filters for this unit as well.

      Nick S. 3 years ago

    • A: Apexi Japan website says 25000 km. Cleanable with air compressor and absolutely do not wash with any liquid

      tastetickles 1 year ago

  • AnswerQ: Tune??  09WRXlover 3 years ago

    I was reading online and I get mixed stories about drop inns. Does this drop in require a Tune??

    • A: Generally speaking, a panel filter will not require a retune on the vehicle. Thank you!

      Sterling W. 3 years ago

  • AnswerQ: Sound Improvement?  iLaw 4 years ago

    I have a friend that has a K&N panel filter. In his car you can notice the sound of the turbo and the BPV more. Will this have the same affect?

    • A: The effects should be relativity close to the 2 different brand filters

      Kirill C. 4 years ago