Noticed this is your first post , welcome . To answer your question , there was a long thread on ptcc about the tornado . The person who had one ended up taking it off saying it did nothing . Some say it hurt mileage without improving performance . I've hung around the forums for a year and the posts I've seen generally are all negative . What will work for the intake side is a well engineered cold air intake like the Volant or Borla . They sell for around $250 to $300 . Also replacing the stock air filter with a K&N helps , $40.
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