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50 State Legal Performance for Ford Focus RS


Applicable Model Years: 2016 - 2018


Mountune USA offers a wide range of 50-State Legal performance upgrades for the Ford Fiesta RS.

Installing these parts ensure your EcoBoost engine remains emissions-friendly while upgrading the performance of your Ford FIesta RS.

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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Limited Offer - Get up to an additional 10% OFF select C.A.R.B. compliant upgrades with coupon code:
"CARBEO"