NKG Spark Plug BKR5EIX-11?

BLK91GT · Sep 28, 2008

Is this the wrong spark plug for my 2006 sti (NKG Spark Plug BKR5EIX-11)?
I was told that this was the irdidium plug I needed, however after reading some posts I am wondering if they sold me the wrong plugs. I don't see anyone using these plugs in there STI
Thanks for the help.

BLK91GT · Sep 28, 2008

What NGK iridium plugs are you using? Thanks

I think what I have might be for a regular 2.5 wrx or somthing.

Puckshaw · Sep 29, 2008

I believe NGK Iridium IX LFR6AIX is the stock replacement and LFR7AIX is one step colder.

Turbineguy · Sep 29, 2008

^^Winner.

BLK91GT · Sep 29, 2008

Hey thanks for the help.
I think I will take the others back.

mjfubar · May 22, 2009

I know this is old but I almost got screwed by this today, I went to the boys and asked for plugs got home took one out and did a double take and had to take them back, I guess now I will order one step colder plugs.

NKG Spark Plug BKR5EIX-11?

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