Not sure if you guys know about these plugs, for those who do not here is some information I want to pass along.
I have them on my 5.6 for 30K miles now and they work great.
When I did the research and installed them I purchased the Iridium Pulstar plugs, I couldn't believe how much power you can gain from a Spark plug.
Later on I found that Titan guys have tried and Dyno'd to show the gain from just the Pulstar spark plugs. To explain in few words, ( Its like what HID's are for headlights) Pulstar plugs create HID ( High intensity discharge ) ( stronger Spark ) with out the need for aftermarket Coils. They do this with Stock ignition. on V8 VS the new NGk plugs on 87 Octane there where 16HP and 10TQ gains. Plus MPG gains
Here is more information in detail, Also I am including the link to the Nissan Titan forum thread where you can find the Dyno results on post # 23:
Pulstar Technology:
https://www.pulstar.com/technology/3167-Technology.html
Pulstar Capacitor:
https://www.pulstar.com/technology/capa ... citor.html
Pulstar Pulse:
https://www.pulstar.com/technology/the- ... Pulse.html
Pulstar Electrode:
https://www.pulstar.com/technology/the- ... trode.html
Pulstar Testing:
https://www.pulstar.com/technology/testing/index.html
Here is the link for Titan forum where they did the Dyno testing and showed good gains, just from a spark plug.
Check the post#23 for the Dyno results and graphs:
http://www.titantalk.com/forums/titan-g ... sting.html