Has anyone installed these yet? if so, any power gains that you can feel and/or gas mileage improvement?

Some previous threads where these have been discussed:
https://g35driver.com/forums/showthr...=pulstar+plugs
https://g35driver.com/forums/showthr...=pulstar+plugs

 

dont need em,they worked well with the DE motors,the HR motor has iridium plugs factory.

 

If any of you are interested in purchasing these use Coupon code 0031 to get a nice discount good through 4/1/08.

Beware: Pulstar™ Pulse Plug Model: DG-1 DOES NOT FIT on the HR motor.

I bought a set of these and used their website to select the 07 G35 with the HR motor. The part# comes back as DG-1. I went to install them this morning and the thread and nut size were too big. The stock plugs use a 15mm socket to remove. The DG-1's needed a 16mm. The problem is a 16mm socket doesn't fit in the plug shaft all the way down. I thought I was trippin and I took one out to compare and what do you know, the thread circumference was larger than stock. Had to put everything back together and chalk it up as a failed install. Now I'll be going back to Pulstar to let them know the plug is wrong, to correct their site and try and get a set that fits. Hey maybe they'll give me a set for free for the hassle.

Anyways, FYI...

 

From what I've read/seen on the internet. You'll get about 0-2% gains.

Not worth the risk/$$ IMO. They're like $25/plug.

 

Iridium (and similarly platinum) is just going to make to make the plugs last longer. You're not going to gain any noticeable power or fuel economy.

 

yes i know that

 

I thought Iridium was a better conductor than copper, unlike platinum, which is worse. Platinum is just for longer life, but Iridium may give a tiny performance boost.

100% pure copper (oxygen free) is a better conductor than iridium, but 100% pure copper is not achievable in a spark plug.