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Is there much difference, i'm only ask as im changing them in my '99 and it has the NGK R CR9EHVX-9 fitted which are platinum, and i understand it should have the Iridium CR9EHIX9 fitted :dunno:
Is there much difference, i'm only ask as im changing them in my '99 and it has the NGK R CR9EHVX-9 fitted which are platinum, and i understand it should have the Iridium CR9EHIX9 fitted :dunno:
Iridium is a harder material so the conductor can be made much smaller.
The smaller conductor concentrates the spark energy so it ignites the mixture better.
Not sure if the average rider / driver could actually tell the difference though.
The primary reason most fit Iridium is that they hold their gap setting far longer than platinum plugs.
Iridium is a harder material so the conductor can be made much smaller.
The smaller conductor concentrates the spark energy so it ignites the mixture better.
Not sure if the average rider / driver could actually tell the difference though.
The primary reason most fit Iridium is that they hold their gap setting far longer than platinum plugs.