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Are they interchangable?

As in can i use SR plugs in my RB :P

The thread depth is the same.

the coil pack end of the spark plug is a little shorter. but i figure as long as the coilpack still reaches it that shouldnt matter.

not sure about the gap or whether that matters?

the SR plug's heat rating is cooler than the RB. how does that effect thing?

Anyone actually know? Not really after an opinion. after a fact :D hehe

Cheers guys. :(

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https://www.sau.com.au/forums/topic/73651-sr20-rb25-spark-plugs/
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just thought i'd point out this thread from sau :P

http://www.skylinesaustralia.com/forums/sh...ead.php?t=67927

The ones offered for RB25det and SR20det both there. the only difference is the number...

SR = BKR6EIX

RB = BKR5EIX

Now i understand the number represents the plugs heat rating? where the smaller the number the hotter the plug?

correct?

Cheers guys

Hey Champ!

Yeah, you are correct from what I know! I was always lead to beleive that smaller the number, the higher temp of the plug, and I've heard the SR20 ones and the RB25 ones are pretty close... :thumbsup:

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