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Increase horsepower, increase engine longevity, and hear more turbo noises with the Green Filter Reusable Air Filter for you 2016 Ford Focus RS.
Deep pleats in the double-layered cotton create a 10-15% increase in filtration surface allowing a greater volume of air to move more freely into your 2.3L EcoBoost Engine while maintaining superior filtration. In addition to the performance enhancements a you'll also reap the benefit of increased fuel mileage because your Focus RS will run more efficiently. Add in the cost savings your reusable Green Filter Air Filter will provide in comparison to replacing the stock filter during regular scheduled maintenance and the Green Filter is a no-brainer for and Focus RS owner.