Everyone says go with spark plugs that are two stages colder but no one at the local parts store know what I am talking about.

Could someone give me the part # for NGK plugs 2 stages colder on a B18? If not NGK what do you guys recommend?

 

BCPR7ES
BKR7ES

 

Which one is two steps colder? And are they both by NGK?

 

Anyone know what R5671A-8 are? Someone told me they were 2 steps colder?

 

Werd.

Ill post a link up when I get home of a good place to get em' from. They can get you iridium's too.

 

go with the ngk irainum ix plugs for turbo nitrous or supercharger. there on ebay for 35 bucks shipped

 

If you go to advanced auto they should be able to hook you up with the colder plugs. I just told the guy I needed 2 steps colder and he pulled out this big *** book and found which ones I needed.

 

Yeah, the guy told me that he had an autolite plug and a champion plug strictly for turbo. But, how good are those brands. I know they are ok for OEM Domestic cars but what about our imports. I thought it was NGK all the way?

 

brans name isnt as important as you think. Think about it ngk is what 5 bucks As long as the plugs are made of copper and not platinum plugs you will be just fine. If you have any worries just gap the plugs a little tighter so its easier for them to make the spark you need.

 

hellno ngk's ar 1.99 at pepboys and thats what i would recommend.