{"product_id":"k-n-custom-racing-assembly-carbon-fiber-4in-air-box-w-o-base-large","title":"K\u0026N Custom Racing Assembly Carbon Fiber 4in Air Box w\/o Base - Large","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e100-8591\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 024844199584\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eK\u0026amp;N 100-8591 Custom Racing Assembly Carbon Fiber 4in Air Box w\/o Base - Large\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eK\u0026amp;N 100-8591 Custom Racing Assembly is a sprint car style carbon fiber air box without base plate designed for racers using traditional multi-Siamese 4in velocity stacks. This large air box ensures high airflow to boost horsepower while maintaining excellent filtration in demanding racing conditions. The washable reusable filter services easily with K\u0026amp;N oil and cleaner for long-term performance in sprint cars midgets and dragsters.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Fiber Construction:\u003c\/strong\u003e Ultra-lightweight material reduces overall vehicle weight for better racing handling and speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Airflow Design:\u003c\/strong\u003e Ample air volume supports engine power needs without restricting intake in high-RPM racing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Filtration:\u003c\/strong\u003e Captures dirt and debris to protect engine while allowing maximum clean air through\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWashable Reusable Filter:\u003c\/strong\u003e Clean and re-oil for repeated use cutting maintenance costs over paper filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower Gains:\u003c\/strong\u003e Engineered to deliver noticeable power increases in custom racing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBase plate not included requires custom fabrication or compatible K\u0026amp;N base for mounting\u003c\/li\u003e\n\u003cli\u003eService filter after every race or 50 hours using K\u0026amp;N cleaner and oil kit\u003c\/li\u003e\n\u003cli\u003eAvoid extreme heat exposure during storage to preserve carbon fiber integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eFits over four 4in Siamese velocity stacks secure with provided hardware or custom clamps\u003c\/li\u003e\n\u003cli\u003eCompatible with most open-wheel racing carburetors and throttle bodies no base means adaptable mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eRacing\u003c\/td\u003e\n\u003ctd\u003eSprint Cars\u003c\/td\u003e\n\u003ctd\u003eMidgets Winged Non-Winged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eRacing\u003c\/td\u003e\n\u003ctd\u003eDragsters\u003c\/td\u003e\n\u003ctd\u003eOpen Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eRacing\u003c\/td\u003e\n\u003ctd\u003eMidgets\u003c\/td\u003e\n\u003ctd\u003eCustom Builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose K\u0026amp;N?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDecades of racing dominance with filters trusted by champions worldwide\u003c\/li\u003e\n\u003cli\u003eProven airflow technology used in dirt track and oval racing victories\u003c\/li\u003e\n\u003cli\u003ePrecision-molded carbon fiber for exact fit and durability under race stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this air box fit my sprint car setup?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e Yes it mounts directly over standard 4in multi-Siamese velocity stacks common on most sprint cars midgets and dragsters\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is the air box made from?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e High-grade carbon fiber for extreme lightness at just 1.9 lbs and resistance to heat and vibration\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the filter warranty and service interval?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e K\u0026amp;N racing filters carry a limited lifetime warranty clean after every event or 50 hours of use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Secure box 19.75 x 17.25 x 7.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.90 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":40318503354447,"sku":"KNN100-8591","price":682.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/kn-custom-racing-assembly-carbon-fiber-4in-air-box-wo-base-large-kn-engineering.jpg?v=1766995181","url":"https:\/\/www.blackopsautoworks.com\/products\/k-n-custom-racing-assembly-carbon-fiber-4in-air-box-w-o-base-large","provider":"Black Ops Auto Works","version":"1.0","type":"link"}