AMBIVALENCE Posted March 31, 2006 Share Posted March 31, 2006 Hi! I own a 2006 2.5i, and i was thinking of swaping into some better performance spark plug. but i have a few question unanswered, hopefully someone can help me. 1. What spark plug should i change into for a 2.5i model? (Brand and model?) And how much HP increase would i get? 2. Does changing to new spark plug increase fuel consumption? (I dont see anyone that brought up this topic in the search. but if someone can gimme some old post that already mention similar info that would be helpful as well. THX!) Link to comment Share on other sites More sharing options...
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