Question does any 1 knows we're I can buy proformance spark plugs needs to be change
Don't wanna spend too much and too little either so can u help me which websites they sell
Them I have 03 g35 sedan thank u

 

You can get the 1 step cooler plugs through the dealer or elsewhere. the model # is PLFR6A-11 the standard plugs are PLFR5A-11 and the warmer plugs are PLFR4A-11. Of course don't take my word for it, check the FSM

why are you trying to run cooler plugs anyways? Normally FI people run cooler plugs, but I've been running them for a long time now with no ill effects. Going with a cooler plug you decrease the likelihood of pinging, however, you increase the likelihood of fouling. The cooler plugs are also recommended if you are doing a lot of high rpm driving

 

So wats good for me?

 

If your not FI'd, stay with oem normal heat range. My .02.

Platinums good for ~50K mi.
Iridiums good for ~100K mi.

NKG's are oem recommended and good plugs.
Denso heard are good too.
Bosh heard eh ok.

You could always try these j/k lol:
http://www.pulstar.com/

 

Denso Iridium > NGK Iridium

But that's strictly just a biased opinion...

 

I'm on the 100 so I should get iridiums then?

 

^
...

 

do u know how to install them shop charges alot i need some one pro ill pay u

 

do u also know which website sell Iridiums?

 

Try bythabay. Will bet prolly much closer to you than me.

His sig:
Maintenance, modification, and repair services. Email me for info. info@infiniticare.com DIY Video Series: https://g35driver.com/forums/g35-seda...eo-series.html<!-- google_ad_section_end -->

Why pay shipping. Go to any auto parts store.

G/L

 

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

i bought mine here. $42 shipped. best price i could find and they came in within like 2 days. They shipped out of West Covina, California I believe.

 

that would fit on mine as well?

 

i designed a new set of spark plugs for our cars. i will give it to you if you dyno test it for me =).

 

how much does it cost to dyno it?

 

for a pull aroun 45 or so. but thats up to u to do