Depends on your definition of 'better'...

STi thought it better to go towards torsen LSDs from '07 onwards in regular STis. Yet kept the plated in more aggressive variants like spec C.

This seams to suggest they think the torsen is a better option for street sports cars where things like NVH and service life are important.... ie, they think people dont want thier expensive sports cars clunking when they go to the supermarket carpark. But think the plated is a better option for out right performance.

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Doing it for all the wagons out there