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AEM Air Bypass Valve

AEM Air Bypass Valve

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  • AEM 20-400S Intake Bypass Valve

    Availability: Out of Stock

    Product Specifications

    Diameter: 2.25"
    CARB EO Numbe: D-670-1

    Price: $63.99
  • AEM 20-401S Intake Bypass Valve

    Availability: Out of Stock

    Product Specifications

    Diameter: 2.5"
    CARB EO Numbe: D-670-1

    Price: $63.99
  • AEM 20-402S Intake Bypass Valve

    Availability: Out of Stock

    Product Specifications

    Diameter: 2.75"
    CARB EO Numbe: D-670-1

    Price: $63.99
  • AEM 20-403S Intake Bypass Valve

    Availability: Out of Stock

    Product Specifications

    Diameter: 3.0"
    CARB EO Numbe: D-670-1

    Price: $63.99
  • Product Details

    Regular Price: $63.99

    AEM Air Bypass Valve

    • Brand: AEM Induction Systems
    • Available Diameter: 2.25", 2.5", 2.75" and 3.0"
    • Included: Hardware and Installation Instructions
    • Installation: Upper portion of AEM intake systems

    AEM’s patented Air Bypass Valve virtually eliminates the chance of hydro-lock in the event the filter of your AEM intake becomes submerged in water.

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      Product Features

    • Virtually eliminates chance of intake system ingesting water if filter becomes submerged
    • Installs along upper portion of AEM intake systems with minor modifications
    • Patent # 6,394,128
    • Complete hardware and installation instructions included
    • Available in 2.25", 2.5", 2.75" and 3.0" Diameter

    • Air Bypass Valve for Cold Air Intakes

      Keep Water Out and Air Flowing In
      On most systems, the valve installs along the upper portion of the inlet pipe. It shuts down induction at the filter when it becomes submerged. Air is routed through the bypass valve's external diaphragm to keep water out and air flowing in.

      Only Be Used with CARB - Exempted
      The AEM Air Bypass valve can only be used with CARB - Exempted AEM Cold Air Systems. Only applications listed under CARB E.O. # D-392-22 have exemption. The AEM Air Bypass Valve is NOT for use on forced induction vehicles.

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      The AEM Story

      AEM was founded in 1987 by John Concialdi (J.C.) and Bob Sullivan as a tuning performance shop. The shop focused on vintage automobiles and the latest trends in street racing modified imports. With it's location in Compton California, AEM was embedded in the tuner market from the very beginning. It was a matter of being in the right place, at the right time, with the right technical knowhow. Between J.C. and Sullivan, AEM had two important advantages. Technical engine knowledge and massive creativity fueled by an unbridled passion to make things go faster. When it came to understanding air flow through an engine, few had more experience than Concialdi. He managed the R&D department for Weber Carburetors for North American aftermarket applications the previous 10 years. By 1993 when the shop relocated to Gardena California, AEM had the reputation as a modifier of choice. The business had grown so much that at times it ran 24 hours a day. Racers depended on AEM to have cars ready for the next street race or sanctioned event. Cars and drivers sporting AEM’s bright yellow logo became famous in the street racing scene for one consistent reason, they won races. AEM’s first glimpse of mainstream notoriety came when cars tuned by their shop won at the “Battle of the Imports”. This highly contested shoot-out landed AEM on the cover of Turbo Magazine and Sport Compact Magazine. Many of the most visible drivers in import street racing ran cars modified by AEM. This included names like Adam Saruwatari, Tony Fuchs, Brian Kim and Darin Ishitani, Archie Medrano, Russ Matuseavich, Abel Iberra, Miles Bautista, E.T. Saffon.

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      If you are not 100% satisfied with your purchase, we offer NO RESTOCKING FEE! We are happy to accept a return for a refund or exchange on products in new/unused/re-sellable condition and that have not been assembled, installed or modified within 90 days of delivery.

      *Please Note: Merchandise that has been installed, modified, drilled, bent, scratched, or otherwise damaged is no longer in "new" or in resellable condition and should not be returned unless it has a manufacturer defect or was damaged in shipping. All returned merchandise must be in its original packaging, including all parts, manual and paperwork. Should you have a warranty issue, please email us at CustomerService@XTRAPIECE.com and we will contact you and facilitate a warranty-service request for you with the manufacturer. We may request photos of the items that are broken, defect, or just not right to assist with the return process.

      The few exceptions for items that cannot be returned include:

      Items Marked "Non-Returnable" or “Open Box” (clearly indicated on the product page and/or shopping cart before placing your order). more details

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