MagnaFlow has a variety of 1978 Ford Fiesta catalytic converters that meet California Grade or Standard Grade requirements. These legally required components will keep your hatchback running like it should and make sure your check engine light stays off. Each converter features durable stainless-steel construction and utilizes a universal design compatible with the Base trim level equipped with the 1.6L inline-four engine. Select your ‘78 Ford Fiesta’s specifications and state vehicle registration to ensure you buy the correct catalytic converter that fits your hatchback’s needs and meets your state’s emissions compliance regulations.