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Amazon.com: K&N Cold Air Intake Kit: High Performance, Increase Horsepower: Compatible with 2012-2018 Ford Focus, 2.0L L4, 69-3517TS : Automotive
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K&N 33-3131 drop in air filter installed on 2.0 Maverick | MaverickTruckClub - 2022+ Ford Maverick Pickup Forum, News, Owners, Discussions
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Amazon.com: K&N Cold Air Intake Kit: High Performance, Increase Horsepower: Compatible with 2013-2018 FORD (Focus ST) 69-3518TS : Automotive
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2013+ Ford Focus ST owners – we have a drop in K&N air filter for you in stock! – ModernPerformance.com Blog
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