I can't get any DENSO IRIDIUM Plugs for my car. Half the people i ask about the plugs never heard of them and the other half does not carry them What kind of plug can i get that is 2 steps colder in NGK??? Anybody part number maybe for the 350z Please

 

It depends on how much you are spraying or plan to spray

 

NGK Iridium Plugs

You can find these plugs cheaper but at least you have the part #.
According to the Nissan service manual, the part number for colder plugs is PLFR6A. How much you spray will determine how big your gap is. Normally, our Z is gapped at 0.043 but with nitrous you want is smaller to keep the heat down.

 

I just placed an order for some DENSO IRIDIUM 2 step colder plugs for my 75 wet shot. Will that work???

 

too much... for 75 shot you are better using a one step unless you plan to shot 125+ in the future.

 

can i leave them in for now or should i get the NGK 1 step copper ones for now, and save the others for a later date??? Also I didn't back off my timing does that make a difference?

 

I need a NEW model number for a good NGK plug that is 1 step colder or maybe 2. The number I have does not compu with the dealers IFR6A-11 I need a new number please

 

http://www.clubplug.net/canada/retail_iridium_ngk.html

Buy it here and get it over with