AEM Air

2.50-Inch Air Intake Bypass Valve

$52.00

SKU: 20-401S

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return

Description

The AEM 20-401S is a 2.50-inch diameter Air Intake Bypass Valve (BPV) designed to protect your engine from hydro-lock. When used in conjunction with an AEM cold air intake system, this valve creates a vacuum leak that bypasses the air filter if it becomes submerged in water. This prevents water from being drawn into the engine, which can cause catastrophic damage.

Fitment

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Specifications

BrandAEM Air
Part Number20-401S
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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