Hi Everyone! I was flipping through the latest June edition of PoP Sci magazin and noticed an ad from Pulstar Spark Plugs claiming a significant increase in HP and Gas mileage on a Nissan 350Z which has a similar engine to the Maxima. Are their claims true and is $25 per plug x 6 worth the investment? Their web-site claims no harm to our engines or warranty issues can result from this application.

And this Blog to explain everything!

http://pulstarplug.blogspot.com/2008...03-nissan.html