I have an 04 Z and am thinking about changing the plugs soon so see if itll give me a small performance increase and or better gas mileage.

What do you guys reccomend?

 

OEM plugs are NGK platinum. I think they are pretty good.
Courtesy Nissan has them:

http://www.courtesyparts.com/betasit...ducts_id=13606

 

I heard splitfires are the chit.........lol j/k I would stick with NGKs.

 

NGK Iridiums--$7.60 per plug

 

Denso iridium! But wont get a performance increase out of a spark plug unless your running a high horsepower applications. Or you've been fouling out...LOL

 

just ordered a set of ngk iridium #6's.. to cope with cams and etc.. NA.

most jap tuners use one step colder plugs for anything with cams, so yeah.

 

NGK PLFR5A-11''s are stock and unless your modded they are the best. Iridiums will last you a little longer. You will see a marked improvement in mileage if you have more then 30K on the current plugs. Idle will improve and throttle tip in will be smoother. In other words....DO IT!

 

I thought Platinums last longer than Iridiums.Thats why platinums are OEM

 

07' use Iridiums as OEM

 

no iridium last longer and burn hotter...they use platinum as oem because its cheaper...lexus uses denso iridium as oem

 

Has anyone done a DIY on how to change the spark plugs?

Thanks

Ian

 

its not that hard...really once you take off the cover and move some of the lines its just a matter of getting access to the points...the back 2 are the hardest to get to

 

anywhere else to get the plugs? i hate going to my local stealership and was gonna pick a set up this week so didn't want to order online

 

By chance ...whats the best one step colder plug for a Vortech set-up ? What web-sites you guys snaggin them from ? Does it hurt to put the one step colder plugs in while your still NA if you plan on going FI soon?

 

Got mine from forged best price shipped

 

The best is the NGK PLFR6A-11. You can use this plug NA with no problems. Its is actually even an optional dealer plug for NA cars in very high ambient temperatures.

 

i used the NGK PLFR6A-11. You can get them almost anywhere- checker, autozone, NAPA, etc. I cannot recall the exact price, but it was about 4 bucks a piece or so.