APR Replacement Intake Filter for CI100037, CI100040

Fits 2009-2023 Audi Q5, RS5, S4, S5, SQ5

Part # RF100015 Be the first to write a review

APR Replacement Intake Filter for CI100037, CI100040

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This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020.

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Replacement filter for various APR intakes. Specs: 7 inch wide, 7 inch tall, 5.5 inch front, 4 inch flange.


  • Black APR section with black stripe
  • Direct replacement for APR intake system
  • Pleated cotton gauze filter
  • Lightly oiled
  • High quality construction
Brand APR
Emission Code7
Filter ColorRed
Filter TypeCotton Gauze
Product TypeIntake Filter
Part NumberRF100015

This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.

Have a question about this product?

  • Question

    Do you have any general guidance or estimates about how often intake air filters need to be cleaned or replaced?

    By Garry Oates on March 1, 2023

    About once a year is a good time to clean.
  • Question

    Hey, I have the open pex system for my golf R. After how many miles should I wash it and what is the recommended procedure for cleaning it?

    By Kevin Crowshaw on February 28, 2023

    Personally I wash mine every year. Here are some cleaning supplies: https://www.goapr.com/products/fluids/
  • Question

    Good Morning, would like to know how to clean the filter. Thank you.

    By Tommy Wong on February 19, 2023

    Use one of our cleaning supplies: https://www.goapr.com/products/engine_hardware/intake/cleaning_supplies/
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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.