Colder burning spark plugs?, where do you get them Options

[nate95]

im suppose to get colder burning plugs for my nitrous kit, i went to autozone and asked for copper plugs and they didn't have any, they also said i wouldn't find any for my car? are there any other kinds other than copper that burn colder? like what about platinum? i just got some bosch platinums instead will they work? and whats with that ceramic tip on them instead of just metal?

[NuclearHappineS]

go to ngk's website (ngksparplugs) and look up his car

and then find whatever plug the stock NGK plug is
and add 1 to the heat range

for example...stock plug is IFR6AIX-11
then the colder plug will be IFR7AIX-11 (heat range 7 rather than 6)

and then go on www.clubplug.net and look for IFR7AIX-11
once you find it, add it to your cart...
now go to the cart and see what the 4 digit NGK part number is for that plug

Take that number and go to napa and get your plugs