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What is the difference between an FM I and an FM II in a 1990-97 car?

April 26, 2017car difference FM ii

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What is the difference between an FM I and an FM II in a 1990-97 car?

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The biggest difference is our FM Link ECU. This replaces the stock engine computer and allows full control over boost, fuel and ignition. The FM II also has a larger intercooler, a knock sensor, electronic boost control and air temperature sensor. It also deletes the air flow or mass air meter for a less restricted intake. This means that you can run 12-15 psi of boost safely as opposed to 8 psi for the FM I.