Toyota Prius Forum : Toyota Prius Forums - View Single Post - Would E3 spark plugs actually make a difference in the Prius?
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post #6 of Old 04-08-2014, 09:35 PM
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I've used Denso Iridium plugs on all our cars for years and they are the ONLY plugs to improve power. They came standard on my 2007 RAV 4. Wish they were made for my 2013 Prius V.
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