AEM 20 400S 2 25 Bypass Valve Review

Got it for my 2004 Scion xB. I'm so glad I found this for my consumption. This matched my second recording, which had a different design than the 2004 original.

This is a direct replacement for the Fiat 500 Mopar Cold Air Bypass Valve. Mopar has been known to break when this happens. Just save your time and money and get this. It only lasts about a year before it breaks.

If you are new to CAI on a vehicle then this requirement should be in your system. Luckily I learned it before it was too late. My original system had no bypass, and a rainy day on muddy roads almost got me. The bypass lets your engine breathe when the filter is clogged. Over time, at least in my car, the system vibrates enough to crash those laps every 3-4 years over time. No other replacement works properly for my machine and here I am again. But my car has been running great for 17 years in…

On the Fiat 500 Pop (2012) the air intake had one of those bypass valves in the Mopar kit. Unfortunately it broke after a few years and the machine started sucking in unfiltered air. Mopar does not supply replacement parts for the kit, so Fiat offers a new kit. This is exactly the same part in the original Mopar kit and the part itself has the same information and numbers. Fits perfectly and takes less than 30 minutes to install (simply loosen 2 clamps). Very easy access as it is located at the