Spark Plugs: E3 Diamond Fire Anyone else tried them?

[Emily]

I had a set of the E3 Diamond Fire plugs installed in my 2000 and immediately noticed a difference in performance. I didn't notice much of a difference in the lower RPM rage, but performance in the upper range was greatly improved. My car tended to drop out a bit in after about 4000 RPMs but after I installed the E3 it held steady and even seemed to have more pep.

I installed a set the same week I bought my 2007 so I can't say I have noticed much of a difference in its performance. However, I did notice a low (almost) puttering sound in the 2007 after they were installed. But that seems to have stopped.

I don't know how they compare to similar plugs, but they are the best I have tried so far.

(I didn't pay full price for the plugs. I saved about $3 per plug, so I don't know if they are worth there full price.)

Has anyone else had any experience with these?

https://sl-i.net/FORUM/images/imported/2009/09/sparkplugs-1.jpg

[dodik]

i put them in my car as well about 3k miles ago no complaints so far, engine seems to work a little better feels lighter as it goes up in rpms. fuel economy improved a bit as well as it should with any new plug. and at half the cost for stock replacement i think they are awesome.