Yup, V-Power is IMO the best performance for $$$. Plat, Iridium won't give you any better spark, it's just a harder metal so the electrode resists getting eaten away over time better, so they last longer.

I do think the V-Power is better then the standard, due to the shaped tip allowing charge density to build higher.

 

i'm also enjoying my E3 spark plugs

 

I will say that when I had my Pulstar sparkplugs in my xb I did notice a good low end torque increase, the only thing about pulstar that is bad besides the price is the cermic seems to crack easy.

 

cause its thin

 

Only way that happened is if your old plugs were so bad, they barely fired.

 

First off if the Cermic is thin it will crack easier and 2nd your plugs dont have to be bad for them to crack, buy a set if you don't believe me and test them out. And I'm not saying there bad sparkplugs you just have to be careful with them more then normal ones.

 

I put in a set about 22,000 miles ago. At first they gave me noticeable improvements in MPG and torque. For the last few months my MPG has been dropping. Yesterday, one of the plugs completely failed, giving me a PO302 error. When I pulled them, they had all eroded to about a .055 gap (the manufacturer recommended .030, which is what I had gapped them at). I regapped and reinstalled with no improvement. Replaced the whole set with Autolite Platinums and the car runs better than it has for months. Come Monday, they're going to get an irate call from me. Better yet, I live in the same town as their corporate office. I'll just take them down there and bounce them off someone's desk.

Bottom line: It's a promising technology but apparently applied with substandard materials and construction. DO NOT BUY.