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AEM Air Bypass Valve

AEM Air Bypass Value for Cold Air Intakes
AEM Air Bypass Valve for Cold Air Intakes
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. 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. Contact AEM customer service for more information on air bypass valve installation locations.

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.

Air Bypass Value Installed in an AEM Cold Air Intake  

Air Bypass Valve for Cold Air Intakes

  • 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


Air Bypass Valve for Cold Air    
Air Bypass Valve - 2.25" Diameter
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Air Bypass Valve - 2.5" Diameter
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Air Bypass Valve - 3.0" Diameter
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