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Old 08-23-2003, 10:10 AM   #1
aphex twin
Scooby Newbie
Member#: 10426
Join Date: Sep 2001
Location: Central NJ
2002 WRX
Midnight Pearl Black

Default spark plug questions...

where are the spark plugs located? how do i get to them? and what are the most recommended performance plugs? TIA
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Old 08-23-2003, 10:53 AM   #2
Scooby Newbie
Member#: 19843
Join Date: Jun 2002
Chapter/Region: MWSOC
Location: St. Louis
2000 2.5 RS Sedan
2016 Base 5MT VRP



(if there is such a thing as a 'performance' plug... I put denso coppers in)
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Old 08-23-2003, 10:24 PM   #3
Scooby Specialist
Member#: 9193
Join Date: Aug 2001
Location: California
2002 WRX


is the torque sequence a must since I dont have torque ranch?
Also, where can I get denso plugs? a serial # on the denso plug would be nice too

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Old 08-25-2003, 07:36 PM   #4
QA Guy
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Member#: 6739
Join Date: May 2001
Location: Houston, TX
2002 WRX


I'd go with NGK over Denso. NGK plugs are used as OEM on the WRX, work well, and are cheap. That's a hard combination to beat.

I would go with the stock heat range in copper if you haven't modified the car that much or one range colder if you have.

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Old 08-26-2003, 08:18 AM   #5
Scooby Specialist
Member#: 1415
Join Date: May 2000
Chapter/Region: NWIC
Location: Anytown, USA
2008 IS350
'13 SantaFe


Get a little package of anti-seize compound for those plugs since the heads are aluminum. That way the threads won't gall. Plus it makes spinning them in much much easier.

If you don't have a torque wrench, you just kind of have to feel it out. Aluminum threads can strip with much less effort than iron threads. So be careful. I usually seat the spark plug then give it another 1/4 turn or less.

Oh and I like the NGK V-power plugs with stock heat range.
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Old 08-27-2003, 11:58 AM   #6
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Member#: 30727
Join Date: Dec 2002
Chapter/Region: South East
Location: Orlando, FL
2000 Legacy B4 RSK
*Formerly subyluvr2212*


NGK V-powers are the best plug to ever use in a Subaru. Anything else is a waste of money. End of story.

I don't use a torque wrench. I jsut know about how tight they should be. If you are straining yourself to tighten them, then you're tightening them too much...
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