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Upgrade today and start enjoying superior airflow and superior performance from K\u0026amp;N's most popular product!\n\u003cbr\u003eK\u0026amp;N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K\u0026amp;N's No-Hassle Lifetime Limited Warranty.\n\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cbr\u003e  \u003cli\u003e4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cbr\u003e  \u003cli\u003eMillion Mile Limited Warranty\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFitment:\n\u003cbr\u003eAudi A4 Premium 2015\n\u003cbr\u003eAudi A4 Premium 2016\n\u003cbr\u003eAudi A4 Premium 2017\n\u003cbr\u003eAudi A4 Premium 2018\n\u003cbr\u003eAudi A4 Premium 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