Reviewed By Bryan I (San Antonio, TX) Reviewed for a 2007 GMC Yukon —3/5/2011 2:31 PM
Bought them for the jeep. Averaging 17-18 mpg's, now up to 18-19-20 mpgs, also have a k&n air filter but the new plugs work great.
Reviewed By Phillip D (Gloucester, VA) Reviewed for a 2007 Toyota Tacoma —1/12/2015 1:54 PM
They perform perfectly in my daily driver, most notably a slight hesitation that my truck has always had is gone. I haven't noticed a big difference in fuel economy probably due more to the winter blend fuel! COME ON SUMMER!