{"product_id":"k-n-engineering-part-57s-4000-performance-airbox-for-ford-focus-c-max-volvo-mazda-3-5","title":"K\u0026N Engineering Part 57S-4000 Performance Airbox for Ford Focus, C-Max, Volvo, Mazda 3 \u0026 5","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eUpgrade your vehicle's airflow with the K\u0026amp;N 57S-4000 Performance Airbox, designed specifically for select Ford, Volvo, and Mazda models. This high-performance airbox replaces the factory air filter and lid, dramatically reducing airflow restrictions to boost engine intake capacity. By smoothing and straightening airflow, it allows your engine to breathe more freely, resulting in increased horsepower and acceleration across the RPM spectrum. The system includes a large conical K\u0026amp;N high-flow air filter that can be used for up to 100,000 miles before needing service, depending on driving conditions. Its injection-molded lid with the embossed K\u0026amp;N logo ensures durability and a sleek appearance, while the straightforward installation process requires only common tools, making it accessible for most DIY enthusiasts. Built to last for the lifetime of your vehicle, the K\u0026amp;N Performance Airbox is backed by the renowned Million Mile Limited Warranty, providing confidence in its quality and longevity. Some models in the 57S series meet the latest TUV emissions and sound regulations, so check compatibility for your specific vehicle. This performance upgrade is an effective way to enhance your vehicle's power without compromising reliability or durability, making it an excellent choice for drivers seeking improved performance and efficiency. The system is not CARB-approved but complies with Prop 65 regulations, ensuring safety and environmental compliance in California.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eReduces airflow restriction for improved engine breathing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes oversized conical high-flow air filter for up to 100,000 miles of use\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInjection-molded air box lid with embossed K\u0026amp;N logo for durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEasy installation with common tools, designed for a direct fit\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBuilt to last for the life of the vehicle with K\u0026amp;N's Million Mile Limited Warranty\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSome models meet recent TUV emissions and sound standards\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003cp\u003eFitment:\n\u003cbr\u003e2013 Ford C-Max Energi SEL\n\u003cbr\u003e2013 Ford C-Max Hybrid SE\n\u003cbr\u003e2013 Ford C-Max Hybrid SEL\n\u003cbr\u003e2013 Ford Focus S\n\u003cbr\u003e2013 Ford Focus SE\n\u003cbr\u003e2013 Ford Focus ST\n\u003cbr\u003e2013 Ford Focus Titanium\n\u003cbr\u003e2014 Ford C-Max Energi SEL\n\u003cbr\u003e2014 Ford C-Max Hybrid SE\n\u003cbr\u003e2014 Ford C-Max Hybrid SEL\n\u003cbr\u003e2014 Ford Focus S\n\u003cbr\u003e2014 Ford Focus SE\n\u003cbr\u003e2014 Ford Focus ST\n\u003cbr\u003e2014 Ford Focus Titanium\n\u003cbr\u003e2014 Ford Transit Connect Titanium\n\u003cbr\u003e2014 Ford Transit Connect XL\n\u003cbr\u003e2014 Ford Transit Connect XLT\n\u003cbr\u003e2015 Ford C-Max Energi SEL\n\u003cbr\u003e2015 Ford C-Max Hybrid SE\n\u003cbr\u003e2015 Ford C-Max Hybrid SEL\n\u003cbr\u003e2015 Ford Focus S\n\u003cbr\u003e2015 Ford Focus SE\n\u003cbr\u003e2015 Ford Focus ST\n\u003cbr\u003e2015 Ford Focus Titanium\n\u003cbr\u003e2015 Ford Transit Connect Titanium\n\u003cbr\u003e2015 Ford Transit Connect XL\n\u003cbr\u003e2015 Ford Transit Connect XLT\n\u003cbr\u003e2016 Ford C-Max Energi SEL\n\u003cbr\u003e2016 Ford C-Max Hybrid SE\n\u003cbr\u003e2016 Ford C-Max Hybrid SEL\n\u003cbr\u003e2016 Ford Focus RS\n\u003cbr\u003e2016 Ford Focus ST\n\u003cbr\u003e2016 Ford Transit Connect Titanium\n\u003cbr\u003e2016 Ford Transit Connect XL\n\u003cbr\u003e2016 Ford Transit Connect XLT\n\u003cbr\u003e2017 Ford C-Max Energi SE\n\u003cbr\u003e2017 Ford C-Max Energi Titanium\n\u003cbr\u003e2017 Ford C-Max Hybrid SE\n\u003cbr\u003e2017 Ford C-Max Hybrid Titanium\n\u003cbr\u003e2017 Ford Focus RS\n\u003cbr\u003e2017 Ford Focus ST\n\u003cbr\u003e2018 Ford Focus RS\n\u003cbr\u003e2018 Ford Focus ST\u003c\/p\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":45762490958023,"sku":"knn57S-4000","price":262.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/2997f621c014b3657596fe8c7e55973a.jpg?v=1762739586","url":"https:\/\/mainstreeteshop.com\/products\/k-n-engineering-part-57s-4000-performance-airbox-for-ford-focus-c-max-volvo-mazda-3-5","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}