Review on E3 Spark Plugs E3.44 Automotive Spark Plug: Enhanced Performance, 4.75 Inch - Pack of 1 by Brandon Perkins

Installed well in my 2001 Tahoe. I would like this to come with instructions on how to unplug it if you need it. Luckily I didn't, it was close enough that I didn't contact him. Don't forget the anti-seize lubricant either. As for more power and MPG. May be. I've noticed that I don't have to press the gas pedal so hard going uphill. Even with the first tank of fuel, but I have more kilometers than usual in quarter and half-tank increments. Let's see. But I also switched my cables and switched to an Air Hog filter at the same time. So when I improve MPG I don't know who to give credit for. As a note. That's a spark plug. If you have V-8. You must order 8 of these.