Review on 🔥 E3 Spark Plugs E3.74 Premium Automotive Spark Plug: Unleash Your Engine's Potential with DiamondFIRE Technology! (Pack of 1) by Daniel Haddo

I drive a 2012 f-150 3.5 ecoboost. It was starting to feel sluggish. Sometimes the launch took a second, other times the throttle response was slow. I argued between them and Bosch Iridiums and just decided to go with them. While waiting I decided to look for people who have experience with this (I know I should have done this before) and a lot of people on the forums are advising people to stay away from them. Don't let that fool you. If you look closely you'll see that those people telling others to stay away have never used them, just a bunch of purists who would buy crap if it said "automotive". I bought the truck used so I can't say how new it is but it's a big improvement. Fuel efficiency improved slightly and throttle response improved. With that in mind, I would recommend these