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Discussion Starter · #1 ·
My RB26 has Greddy Iriduim plugs in it, I've removed them and checked them all and they seem fine. Should I carry on running these or swap out for some OEM NGK plugs?

I've heard about the tips on these plugs breaking off and falling inside the engine..

Picture of one of the plugs
 

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Get rid of the iridium's and go copper. You wont look back and you will be saving yourself money too.

Transformed my car and will never use Iridium's again.

I ran BCPR6ES @ 400bhp
Now BCPR7ES @ 540bhp and they will be fine up to around 700 maybe more.
 

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Discussion Starter · #9 ·
Get rid of the iridium's and go copper. You wont look back and you will be saving yourself money too.

Transformed my car and will never use Iridium's again.

I ran BCPR6ES @ 400bhp
Now BCPR7ES @ 540bhp and they will be fine up to around 700 maybe more.
Thanks for that, They do work out to be nearly half the price! I will try them out in the next service :)
 
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