just saw these in a mag this month, i 4get who makes them but they are claiming way better fuel burn, anyone try these or know anything about them?

 

http://www.pulstarplug.com/

 

I'd just stick with a good NGK in the correct heat range.

https://www.s2ki.com/forums/index.php?showtopic=571935

 

there are a couple of threads already started on this plug with some good info. a quick search should yield you good results

 

Modified magazine did a dyno test on them in a Nissan 350Z and they netted an 11 horse gain. I have read two other articles using different vehicles that showed similar gains. Very impressive for a spark plug change. they do cost $25 each, thats the only downfall

 

I have them installed im my car right now and so far they are great.
They work as good as or better than stock ones did and they "feel" more responsive and more peppy especially at higher RPM's.
They give me better gas mileage too, I am nearly back to the same MPG's that I had before I changed my differential to 4.56 gears.
I figured the Denso Iridiums I would have gotten to replace the stock plugs would have been about half of what these cost me so why not give these a try....and so far I am not disappointed. I have never dyno'd my car but I can say that it feels like it has more HP and torque now.

 

There has a few dyno proven results showing a HP loss. Search www.s2kca.com for more info

 

This was done on a good friend of mines dyno, and we both could not believe that they actually made 11 whp over normal plugs.

 

If the claims are too good to be true, they probably are.

Moving thread too.

 

the dyno doesn't lie.