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50 State Emissions Compliant Performance Parts


Mountune USA offers a wide range of 50-State Legal performance and power upgrades for the Ford EcoBoost engine platform.

These parts have been engineered for excellence by our motorsport engineers and underwent a California Air Resources Board engineering evaluation and granted an exemption to the state's emission control system anti-tampering laws.

This exemption is called an Executive Order (EO) and allows the modification to be installed on specific emission controlled vehicles.
Installing these parts ensure your EcoBoost engine remains emissions-friendly while getting more performance out of your engine.

Every Executive Order for a 50-State Legal mountune part has an assigned number that can be verified by Smog Check stations, BAR Referee stations, or by CARB and are listed in the product description.

For more information about mountune's emission compliance click here.

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