so 1 step colder for a d series is bkr6e correct?

 

yeah ****

 

indeed... get it tuned nigggaaaaaaaa

 

you can stick with the zfr ones for the d.
ZFR6F-11
They come stock on the 2002-2004 mazda protege turbo. maybe more years.
check ngksparkplugs.com

 

i beg to differ, the stock part# on my d16a6 were bcpr6es-11 or something like that. i beleive thats even what it says under the hood. so 1 step colder for me were the bcpr7e-11. its actually quite funny how i found these. i dicovered that the old 90's Saab 900 (i think) that came turbo'ed used the exact part# as my crx but one step colder. so i went to checkers and told them i needed spark plugs for a 91 Saab 900 and they are identical but just 1 step colder(bcpr7e-11). hope this helps

 

Saab 900 huh? good info for the disposable-D nut swingers