Tuning & Engine Management
well here's my contribution:
here we go. use this to create your specific plug heat range and gap and use it to cross reference other types of plugs.
DENSO SPARK PLUGS - Basic Knowledge
B15 (Gen I) plug # is : Nissan:#22401-5M015 (NGK: PLFR5A-11)
Denso stock replacements:
(IRIDIUM TOUGH)...