Overview Reviews Product Description 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. Product Videos Custom Field MPN 20-402S Product Reviews Write a Review Write a Review × AEM Induction AEM 2.75 in. Universal Cold Air Intake Bypass Valve - NOT FOR FORCED INDUCTION - 20-402S Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
Quick view Details AEM Induction | sku: AEM20-401S AEM 2.50 in. Universal Cold Air Intake Bypass Valve - NOT FOR FORCED INDUCTION - 20-401S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM20-403S AEM 3.00 in. Universal Cold Air Intake Bypass Valve - NOT FOR FORCED INDUCTION - 20-403S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM20-400S AEM 2.25in. (with clip) Intake Bypass Valve Kit - 20-400S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM21-860C AEM Induction 13-18 Ford Focus ST 2.0L Cold Air Intake - 21-860C MSRP: Now: $431.99 Add to Cart ×
Quick view Details AEM Induction | sku: AEM20-403S AEM 3.00 in. Universal Cold Air Intake Bypass Valve - NOT FOR FORCED INDUCTION - 20-403S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM20-400S AEM 2.25in. (with clip) Intake Bypass Valve Kit - 20-400S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM21-860C AEM Induction 13-18 Ford Focus ST 2.0L Cold Air Intake - 21-860C MSRP: Now: $431.99 Add to Cart ×
Quick view Details AEM Induction | sku: AEM20-400S AEM 2.25in. (with clip) Intake Bypass Valve Kit - 20-400S MSRP: Now: $71.99 Add to Cart Quick view Details AEM Induction | sku: AEM21-860C AEM Induction 13-18 Ford Focus ST 2.0L Cold Air Intake - 21-860C MSRP: Now: $431.99 Add to Cart ×
Quick view Details AEM Induction | sku: AEM21-860C AEM Induction 13-18 Ford Focus ST 2.0L Cold Air Intake - 21-860C MSRP: Now: $431.99 Add to Cart