NGK's B9ES candle is a very strong original type candle with a short base. Use it during your break-in and your adjustments, cold enough, it has the right temperature to make the adjustments and break-in or to run your original engine all the time or when pushed. It is not made for extreme performance but will be able to withstand a large kit without problems, unlike the BR9ES it is not equipped with a resistance.

-Resistance: no
-Culot: long
-Index: 9 (9 = 27 at DENSO)
-For engines: all engines, good for adjustments / break-in of very powerful engines