{"product_id":"k-n-red-intake-system-for-harley-davidson","title":"K\u0026N Red Intake System for Harley-Davidson","description":"\u003cp\u003eK\u0026amp;N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Built around the legendary K\u0026amp;N High-Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum back plate that eliminates external breathers and features a built-in, dyno-tuned velocity stack. The result is a significant airflow increase to the engine without sacrificing filtration. This RK Series assembly retains a factory appearance by utilizing the stock air cleaner cover. The RK-3910-1 comes with a larger air filter and longer spacers than the RK-3909-1.\u003c\/p\u003e\n\u003cp\u003eThe latest addition to K\u0026amp;N's RK Series was developed to get more horsepower from your Twin Cam Harley-Davidson engine. Provides a significant airflow increase to the engine without sacrificing filtration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWashable \u0026amp; Reusable Air Filter: Includes a High-Flow Air Filter that can go up to 100,000 miles before cleaning under normal highway driving conditions.\u003c\/li\u003e\n\u003cli\u003eDesigned to increase horsepower \u0026amp; torque\u003c\/li\u003e\n\u003cli\u003eDyno-tuned velocity stack\u003c\/li\u003e\n\u003cli\u003eExcellent air filtration\u003c\/li\u003e\n\u003cli\u003eWashable and reusable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":52583606124775,"sku":"RK-3909-1","price":314.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0768\/4030\/4871\/files\/18434fc92eeca21f29123f02191f7915.jpg?v=1788863595","url":"https:\/\/www.bsdp.store\/products\/k-n-red-intake-system-for-harley-davidson","provider":"Black Sheep Diesel Performance","version":"1.0","type":"link"}