List Price: $80.29
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$63.99 USD
Part:   20-400S

AEM 20-400S Intake Bypass Valve

AEM Intake Bypass Valve
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0
  • AEM parts and accessories are engineered to outperform
  • Made from high-quality materials for durability
  • Adheres to AEM’s stringent design, quality and performance requirements
  • Designed and engineered beyond levels typical in the automotive aftermarket

AEM produces a variety of accessories and miscellaneous parts made from high quality materials.
Specifications AEM 20-400S Product Specifications
Product StyleAEM Intake Bypass Valve
CARB EO NumberD-670-1
Package Contents1 Bypass Valve
Package Quantity1
Weight1 lb (0.5 kg)
Product Box Height3.63 in (92 mm)
Product Box Length6.13 in (156 mm)
Product Box Width5.88 in (149 mm)
Material UsedNylon
WARNING: Cancer and reproductive
Reviews Product Reviews

Damon Victory from Carrollton, Texas
June 20, 2016 - Part 20-400S
Purchased this as a replacement because my original which was installed in 2004 had cracked and fell apart due to shoddy dealer install. Nevertheless I think this bypass saved my engine during a high water event, even though it was broken and partially connected. Didn't hesitate to replace, and the newer version seems of more substantial than its predecessor.
Scott Van Alstine from Palm Springs, California
June 6, 2016 - Part 20-400S
Five Star... thank you. :)
Francisco from Anaheim, California
November 18, 2014 - Part 20-400S
Very Good Service!!!!!