There have been numerous threads on the other sites,PTCC,PTOC and PTE all of which came up negative for the Tornado or similar devices. Anything you stick into the airstream of a direct fuel injected engine will disrupt that airflow and probably REDUCE both gas milage and power. The only place a "swirl" device might help is with a carborated or throttle body injection fed engine. The PT has direct port fuel injection with long air runners after the throttle body.
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