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See Photos of the 2020 Ford Mustang EcoBoost Performance Package

To get things started, Ford confirmed production availability of the Valencia, Spain-built turbocharged 2.3-liter engine from the Focus RS. Desirable for its die-cast alloy block and high-performance extra-strength cylinder head, it required a bit of engineering to utilize it for a rear-wheel-drive-only setting. While they were at it, Ford tweaked the head gasket, specified a 5 percent larger 63-mm twin-scroll turbo compressor and a larger radiator.

See Photos of the 2020 Ford Mustang EcoBoost Performance Package

This single box-check option, borrowed from the Focus RS, can take a 2.3-liter Mustang from base to race.

From Car and Driver