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Part:   20-401S

AEM 20-401S Intake Bypass Valve

AEM Intake Bypass Valve
  • Fits 2.5 inch tubes
  • Secures with two included 1/2 inch wide hose clamps
  • Protects engine from water in cold-air intake systems
  • Installs along the upper portion of the inlet pipe

AEM air bypass valves create a vacuum leak to bypass the air filter in the event that the air filter sucks up water. Air bypass valves are typically installed onto the air intake tube on cold-air intake systems.
Specifications AEM 20-401S 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