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AEM Air Bypass Valve Part #20-400S Customer Reviews

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3 Customer Reviews


Reviewed by Raul R (Orlando, FL) Reviewed for a 2007 Toyota Yaris — Mar 26, 2015 8:10 PM

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My toyota had a trd cold air intake that had this same valve and it needed replacing so it works amazing easy to install and looks great nice and new.

your product is great

Reviewed by PAMELA H (SAINT PETERSBURG, FL) Reviewed for a 2005 Scion xB — Mar 08, 2012 3:52 AM

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1 of 2 people found the following review helpful.

Your customer service is outstanding. It is the most efficient customer service people I have ever encountered. Thank you I wish all customer service was as efficient as yours. You people need to teach customer service classes to some of these other Companies. Thank you again

It Fits

Reviewed by Donna K (Houston, TX) Reviewed for a 2004 Scion xA — Nov 18, 2010 11:20 AM

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1 of 6 people found the following review helpful.

I ordered the part to replace one that was broken. It seems to be the correct part and it fits properly.

AEM Air Bypass Valve - 20-400S

  • $61.99
  • 1-Year Lower-Price Guarantee
  • Free Ground Shipping
  • Overnight Shipping Available: $4.99
  • Ships By 12/14


  • Part Size:
    2.25" Inlet
  • Part #:
  • 2.25" valve inlet (fits intake pipes with a 2.25" outlet diameter)
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