{"product_id":"aem-induction-21-5011-4-inch-universal-cold-air-intake-system","title":"AEM Induction 21-5011 4-Inch Universal Cold Air Intake System","description":"AEM's 21-5011 is ideal for engine swaps when a custom intake is required. It comes with an AEM Dryflow Air Filter, three 4 inch diameter aluminum tube bends, one straight 36 inch long, 4 inch diameter tube, seven couplers, a weld-on mass air flow sensor pad, two brackets and hardware needed to custom build an air intake.\nAEM's 21-5011 is ideal for engine swaps when a 4 inch diameter custom air intake is required.\nAssociated products: AEM-1-4001 Air Filter Wrap, AEM-21-2059DK AEM DryFlow Air Filter, AEM-1-1000 Air Filter Cleaner\n\u003cul\u003e\n  \u003cli\u003eLimited Lifetime Warranty\u003c\/li\u003e\n  \u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AEM Induction 21-5011 4-Inch Universal Cold Air Intake System is designed for engine swaps, custom builds, and applications that require a universal 4-inch air intake. This kit provides the core components needed to create a customized intake routing while supporting consistent airflow to the engine. Its modular design makes it suitable for performance enthusiasts, fabricators, and installers who need flexibility during a custom installation.\u003c\/p\u003e\u003cp\u003eThe system includes an AEM Dryflow air filter, aluminum intake tube sections, couplers, a weld-on mass air flow sensor pad, mounting brackets, and installation hardware. The filter is washable and reusable, helping reduce ongoing replacement needs when maintained with the appropriate service products. AEM Induction manufactures this kit in the USA and backs it with a limited lifetime warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: AEM Induction\u003c\/li\u003e\n\u003cli\u003ePart Number: 21-5011\u003c\/li\u003e\n\u003cli\u003eProduct Type: Universal cold air intake system\u003c\/li\u003e\n\u003cli\u003eIntake Tube Diameter: 4 inches\u003c\/li\u003e\n\u003cli\u003eTube Material: Aluminum\u003c\/li\u003e\n\u003cli\u003eAir Filter Type: AEM Dryflow washable and reusable filter\u003c\/li\u003e\n\u003cli\u003eMass Air Flow Provision: Weld-on sensor pad included\u003c\/li\u003e\n\u003cli\u003eManufacturing Origin: Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe AEM Induction 21-5011 is a universal system intended for custom engine swap and custom intake applications requiring a 4-inch intake tube. Vehicle-specific fitment is not provided; installation may require cutting, fabrication, sensor placement, and custom routing. This product is not CARB approved and may require acknowledgment of applicable emissions restrictions before installation or use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAEM Dryflow air filter\u003c\/li\u003e\n\u003cli\u003eThree 4-inch aluminum tube bends\u003c\/li\u003e\n\u003cli\u003eOne straight 4-inch aluminum tube\u003c\/li\u003e\n\u003cli\u003eSeven couplers\u003c\/li\u003e\n\u003cli\u003eWeld-on mass air flow sensor pad\u003c\/li\u003e\n\u003cli\u003eTwo mounting brackets\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAssociated maintenance products include the AEM 1-4001 Air Filter Wrap, AEM 21-2059DK Dryflow Air Filter, and AEM 1-1000 Air Filter Cleaner.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCustom Engine Swap Fitment: Designed for custom engine swaps and universal 4-inch intake applications.\u003c\/li\u003e\n\u003cli\u003eModular Intake Construction: Includes aluminum tube sections and multiple couplers for flexible intake routing.\u003c\/li\u003e\n\u003cli\u003eDryflow Air Filtration: Features a washable and reusable AEM Dryflow air filter for convenient maintenance.\u003c\/li\u003e\n\u003cli\u003eMass Air Flow Sensor Provision: Includes a weld-on mass air flow sensor pad to support custom sensor installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"AEM Induction","offers":[{"title":"Default Title","offer_id":67638882664700,"sku":"21-5011","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/e4276c641a108dff5361a0969aa5b2de.jpg?v=1790968943","url":"https:\/\/diycustoms.store\/products\/aem-induction-21-5011-4-inch-universal-cold-air-intake-system","provider":"diycustoms.store","version":"1.0","type":"link"}