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AEM Induction 20-403S Air Bypass Valve


AEM Induction 20-403S Air Bypass Valve 3 in.

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Availability: Available


AEM Induction - Air Bypass Valve P/N 20-403S Features:

  • Secures With 2 1/2 Inch Wide Hose Clamps
  • Protects Engines From Water In Cold Air Systems
  • Installs Along Upper Portion Of The Inlet Pipe

Product Documents:

View the Full List of Automotive Applications »

Below is an abbreviated list of applications for the Air Bypass Valve.


Innovation has always been AEM’s core competency. As J.C. would say “if you can’t make something better, why make it all?” This “make it better” drive combined with our commitment to the sport compact market continues to distinguish AEM from the many company’s offering “Me Too” copycat products. Our innovations are inspired by a passion for engineering excellence, being there and getting our hands dirty, the only way to really understand technology enough to make it better. The company continues to lead the way with innovative products that push the envelope of what is possible.

Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.
  • W5.8800” x H3.6200” x L6.1250”
  • Free Shipping!