I need to change plugs on my G35, I was looking at the NGK iridiums? Any suggestions?

 

NGK's website has a guide that will tell you all acceptable plugs for each specific car. You might want to look at Denso too. Denso is OEM for alot of manufacturers and is typically $1-$2 cheaper per plug for iridium. Iridium comes pre-gapped but check it because I've returned them on many occasions for being out of spec before install.

 

NGK G-Power Platinum Spark Plugs :]

 

http://ngksparkplugs.ecrater.com/pro...hp?pid=2031849


Check out this link. I replaced my plugs last month with the iridiums and got a great deal on them as well. Couldn't be happier!!

 

i wonder if these NGK Iridium IX will work for the HR motor too (2007 g35x here)

 

Iridium works well on any NA application. For FI its best to use copper plugs.

 

yeah but if you look up ngk iridium IX, they list up to 06' g35 only

 

Why copper? GTM put NGK (P/N LFR6AIX-11) into my 2007 HR-TT.

 

Did you check out my link? It clearly says 03-07 G35.

http://ngksparkplugs.ecrater.com/pro...hp?pid=2031849

 

cooper wears out quick..like every 2-3 oil changes, but it conducts electricity the best compared to other plugs. I used to run NGK coppers in my MR2. They ran like $3 a plug.

 

Cooper plugs are old news. They worked well with the old school cars but the new cars have much better ignition systems so have no need for them.