Im wanting to go with the ngk spark plug with the heat range of 7, I was told to go with this heat range so i will not have any probloms when i have to go smog. I was also told by buddy that a colder plug will lower the KNOX when smogging... according to sparkplugs.com formthe veichle 93 acura integra 1.8l (LS) This part # came up "ZFR5F-11" and since im looking to get the heatrange 7 the part number should be "ZFR7F-11". After a bit researching and according to a few guys this ZFD series part # has been discontinued and is now BKR7E-11 but im cerious because this part # matches to the B16 if im correct. My question is is the BKR7E-11 the correct 1 to go with for my b18b (ls)?? I just want to make shure I dont want there to be a mess when i could have prevented it. THNX

EDIT: forgot to paste the link about the whole spark plug disscution
https://honda-tech.com/forums/showthread.php?p=37521448

 

Do b16/b17/b18a,b /b18c motors use the same spark plug??

 

just for future reference, here is a link

http://www.sparkplugs.com/results_cr...F-11&x=33&y=20

2 the correct spark plug to the b18