Cobb Tuning Rear Motor Mount for 2014+ Fiesta ST Mustang He grabbed a set of

He grabbed a set of plugs from us and installed

Definitely a must have if you plan on making the most power with your vehicle for track days

Yellow (Not Used)

Which won't cause a dead plug but will cause inconsistent spark as it will be igniting off the side of the ground electrode

without damaging the Iridium welded tip

Cobb Tuning Rear Motor Mount for 2014+ Fiesta ST Mustang He grabbed a set ofDESCRIPTION The COBB Ford Fiesta ST Rear Motor Mount is the best way to minimize engine movement, improve traction, and reduce wheel hop without major impact to NVH. Typical bushing designs can rattle your teeth out at idle or during throttle input. The COBB Ford Fiesta ST RMM utilizes unique voids custom molded into the larger 68A durometer bushing and a smaller 85A durometer bushing to absorb vibrations, but still reduce engine movement to aid