Review on 🔥 E3 Spark Plugs E3.40 Premium Automotive Spark Plug: Harness the Power of DiamondFIRE Technology (Pack of 1) by Jeff Richmond

This is the fourth kit I have installed on one of my machines. Every time I installed them, I noticed a performance boost as soon as I got in the car. They are exactly as advertised. I notice that my cars start easier, accelerate better and use gas a little better. My last install was on my Chevy 87 4x4 pickup. First I installed an MSD 6A Digital Ignition Unit and the truck ran great. Then I installed E3s. Wow! My truck is running great! Which says a lot considering it has 153,000 miles on it. I've seen far more improvement with these stubs than any other stub I've tried. These include: Splitfires, Bosch Platinum, +2 and +4, plus any other regular forks I've used. E3s have always worked great for me.