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+--- Thread: 'Factory' high performance spark plugs (/showthread.php?tid=4134)
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'Factory' high performance spark plugs - PowerDubs_imp - 03-19-2023
Ummm- these ARE OEM- Original Equipment Manufacturer - NGK
With the more modern materials and design / machining capability they have now.
It’s as if… you didn’t actually look / read at all…
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RE: 'Factory' high performance spark plugs - 1973cb750 - 03-19-2023
i was surprised the stock plugs being efi weren't these to begin with my brother cbr600rr had oem iridium like these
RE: 'Factory' high performance spark plugs - PowerDubs_imp - 03-20-2023
When you said you tried 'these'- do you mean the iridium with the smaller tip but still standard square strap? Which would still be an improvement over the stock design- but apparently a 'middle ground'.
Or these DX from overseas with the smaller D shape and different metal?
'Factory' high performance spark plugs - PowerDubs_imp - 03-27-2023
Plugs arrived today-
![[Image: 39ced0049fda235045e2076944f61ece.jpg]](https://cb1100forum.net/forum/uploads/imp/202303/39ced0049fda235045e2076944f61ece.jpg)
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'Factory' high performance spark plugs - mvk24_imp - 05-06-2023
Very curious to see how it goes Dubs.
Reminds me of project farms testing of different spark plug designs!
https://youtu.be/jcVF3xL_fzk
2014 CB1100, 1981 KZ440 LTD, 1993 Yamaha XJ600 Seca, 1994 Yamaha XJ600 Seca
RE: 'Factory' high performance spark plugs - MagnaRider - 10-02-2024
Did you ever see a noticable increase with these plugs?
RE: 'Factory' high performance spark plugs - PowerDubs_imp - 10-02-2024
Haven't installed them yet. I'm gathering a lot of different parts for all sorts of tests....and then will knock it out on the dyno over the course of a couple days.
RE: 'Factory' high performance spark plugs - rtmoto1 - 10-23-2024
Just arrived today set of LMAR8ADX-9S will fit tommorow