Anyone use them before? I noticed them at the local TSSC last time i went and was thinking of getting one for my Trailblazer. It has on the package the cross reference for NGK. Ive always gone with NGK but these E3's say they have better contact and they even have a lifetime warranty. Not bad for $6

 

I put them in my 2002 Ford taurus with the V6 DOHC and it totally brought it back to life like it was a new vehicle again...will ALWAYS put it in any future applications, whether it is auto, cycle, lawn equipment, toys, etc.