Skip to Product Info
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011
    • AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011

    AEM 4in Universal Cold Air Intake System, Custom Build Components | 21-5011

    Vendor: AEM Induction
    Part Number: 21-5011
    Regular Price $419.99

    In Stock

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:

    The AEM 21-5011 is a universal 4-inch cold air intake system built for engine swaps and custom intake fabrication. It includes an AEM Dryflow air filter, three 4-inch diameter aluminum tube bends, one 36-inch straight 4-inch diameter tube, seven couplers, a weld-on mass air flow sensor pad, two brackets, and the hardware needed to build a custom intake system for a wide range of applications.

    Installation Instructions

    Specifications:

    • Filter Type: AEM Dryflow oil-free, washable, reusable synthetic media
    • Tube Diameter: 4 inches
    • Included Components: 3 aluminum tube bends, 1 straight 36in tube, 7 couplers, weld-on MAF sensor pad, 2 brackets, mounting hardware
    • Construction: Manufactured in the USA
    • Warranty: AEM Limited Lifetime Warranty
    • Part Number: 21-5011

    FAQ

    What is the AEM 21-5011 used for?

    The 21-5011 is a universal 4-inch cold air intake kit designed for engine swaps or custom intake builds where a specific-fit intake system is not available.

    What's included in the kit?

    It includes an AEM Dryflow air filter, three 4-inch aluminum tube bends, one 36-inch straight 4-inch tube, seven couplers, a weld-on mass air flow sensor pad, two brackets, and mounting hardware.

    Where is it manufactured?

    The AEM 21-5011 is manufactured in the USA and backed by AEM's Limited Lifetime Warranty.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed