If you've installed a performance filter in your compact executive sports car, AutoAnything probably has that brand so that you can rejuvenate your Audi RS4 air filters with our products. Our RS4 performance filters are designed to slip right into your filter compartment with ease.
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Take out water, mud and sand clogging your air system with the Audi RS4 custom prefilter. Our RS4 air filter cleaning kit keeps your reusable filter like new. Finally, when you pick any of our Audi K&N filters, you gain performance air filtration that matches the year, make and model of your compact sports car.