NGK OEM Equivalent Spark Plugs? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

wparsons · 05-11-2016, 11:10 PM

Anyone know which NGK plugs are the right plugs for our use?

I've found one source that says they're Iridium IX 5687, but haven't found anything to back it up with. Can anyone confirm?

finch1750 · 05-12-2016, 12:11 AM

Considering NGKs website doesnt list any that would be none.

Only the OEM plugs are an option still

lamawithonel · 05-12-2016, 01:43 AM

If you're looking for a better plug, Denso makes some for the JDM. They're quite a bit more expensive, but both the electrode and ground strap-- or at least a little part of the ground strap-- are made from platinum group metals-- iridium for the electrode and platinum for the ground strap. The electrode is also the narrowest you can get, which in my testing was the most important factor for a reliable spark.

https://www.denso.co.jp/cgi-bin/plug...ion=search&cc=
http://www.rhdjapan.com/denso-iridiu...g-vxebh27.html

finch1750 · 05-12-2016, 01:52 AM

Quote:

Originally Posted by lamawithonel

If you're looking for a better plug, Denso makes some for the JDM. They're quite a bit more expensive, but both the electrode and ground strap-- or at least a little part of the ground strap-- are made from platinum group metals-- iridium for the electrode and platinum for the ground strap. The electrode is also the narrowest you can get, which in my testing was the most important factor for a reliable spark.

https://www.denso.co.jp/cgi-bin/plug...ion=search&cc=
http://www.rhdjapan.com/denso-iridiu...g-vxebh27.html

Thats actually cheaper then OEM from many places lol

wparsons · 05-12-2016, 06:51 AM

Quote:

Originally Posted by finch1750

Considering NGKs website doesnt list any that would be none.

Only the OEM plugs are an option still

That doesn't necessarily mean there isn't one that's totally equivalent, it could just mean their site is out of date. The lookup on their site only goes up to 2014 for any manufacturer, so it's two full model years behind.

radroach · 05-12-2016, 07:36 AM

I had mine replaced with NGK plugs and have no issues. Wish I could help on the part # they used, i had a tuner shop do it for me.

Yobiwan · 05-12-2016, 07:45 AM

NGK racing plug

R2558A-9 (for NA, OE spec)
R2558A-10 (for NA, FI)

you can order from here

http://www.rhdjapan.com/ngk-r2558a-r...park-plug.html

JDM reviews

http://minkara.carview.co.jp/partsre...mk=1&cmo=54743
http://minkara.carview.co.jp/partsre...mk=1&cmo=54743

finch1750 · 05-12-2016, 11:14 AM

Quote:

Originally Posted by radroach

I had mine replaced with NGK plugs and have no issues. Wish I could help on the part # they used, i had a tuner shop do it for me.

Check your paperwork, cuz they obviously know more then the forum does. And the OEM plugs are a grip from most dealerships

nickmerronesucks · 05-12-2016, 11:53 AM

What are boosted guys running for plugs? any re tuning required for different plugs?

SlammedSilly · 05-12-2016, 11:58 AM

Quote:

Originally Posted by nickmerronesucks

What are boosted guys running for plugs? any re tuning required for different plugs?

nick stfu, thought you were parting out??

nickmerronesucks · 05-12-2016, 01:09 PM

Quote:

Originally Posted by SlammedSilly

nick stfu, thought you were parting out??

no i gave up.

05-12-2016, 12:11 AM	#2
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,571 Thanks: 9,382 Thanked 9,397 Times in 5,261 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Considering NGKs website doesnt list any that would be none. Only the OEM plugs are an option still __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

05-12-2016, 01:43 AM	#3
lamawithonel Member Join Date: Mar 2014 Drives: 2014 Subaru BRZ Ltd. Location: Mid-Atlantic Posts: 53 Thanks: 131 Thanked 36 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	If you're looking for a better plug, Denso makes some for the JDM. They're quite a bit more expensive, but both the electrode and ground strap-- or at least a little part of the ground strap-- are made from platinum group metals-- iridium for the electrode and platinum for the ground strap. The electrode is also the narrowest you can get, which in my testing was the most important factor for a reliable spark. https://www.denso.co.jp/cgi-bin/plug...ion=search&cc= http://www.rhdjapan.com/denso-iridiu...g-vxebh27.html __________________ question everythinglearn somethinganswer nothing

05-12-2016, 07:45 AM	#7
Yobiwan Senior Member Join Date: Jan 2012 Drives: Toyota 86 Turbo, Lexus NX300H Location: S.Korea Posts: 135 Thanks: 263 Thanked 166 Times in 73 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	NGK racing plug R2558A-9 (for NA, OE spec) R2558A-10 (for NA, FI) you can order from here http://www.rhdjapan.com/ngk-r2558a-r...park-plug.html JDM reviews http://minkara.carview.co.jp/partsre...mk=1&cmo=54743 http://minkara.carview.co.jp/partsre...mk=1&cmo=54743 __________________ 2012 Toyota 86 6MT / 11:1 CR block by Outfront / SBD500x Turbo 17PSI@93gas /Avo 2.5 overpipe+Avo 2.5 catted frontpipe /MAP 3" CBE/ Tein Mono sport / STI brembo Front /OS技研 LSD/SSR GTX01 18x9.5

05-12-2016, 11:53 AM	#9
nickmerronesucks Ned flanders Join Date: Mar 2014 Drives: 13 BRZ, 16 Hellcat, 22 Ram 2500 Location: Levittown PA Posts: 885 Thanks: 451 Thanked 362 Times in 254 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	What are boosted guys running for plugs? any re tuning required for different plugs? __________________ 797Performance.com

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05-12-2016, 07:36 AM	#6
radroach Senior Member Join Date: Feb 2013 Drives: car Location: usa Posts: 2,162 Thanks: 1,028 Thanked 867 Times in 530 Posts Mentioned: 35 Post(s) Tagged: 1 Thread(s)	I had mine replaced with NGK plugs and have no issues. Wish I could help on the part # they used, i had a tuner shop do it for me.

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