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I was just wondering if i bought the proper sparkplugs from COZ. i have the PFR6G-11 Spark plugs but everybody talks about the PFR6B-11 plugs, did i buy the proper ones? (by the way i have a 90' 5speed N/A)
 

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Ok I might be wrong here but according to how ive seen all NGK plugs marked the PFR6G-11 and the PFR6B-11 would be the same heat range which would be 6. NGK goes from heat range 1-9 1 being the hottest 9 being the coldest. The 6 in each of the those plugs denotes the heat range. So if you ever wanted to go colder youd get PFR7B-11 and so on.
 

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yup, its good. I got them as well, same thing.
 
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