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Old 05-08-2000, 02:48 PM   #1
nizz
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Member#: 188
Join Date: Aug 1999
Location: New York
Vehicle:
2004 Forester XT
24k gold on white

Post

Crap! I just threw out the box for the spark plugs. Just drop by Autozone or Pepboys and they can look it up on their computer. My crap Champion sparks plugs were in pretty bad shape after less than 10k miles in my MY2000. The +4's made my car drive like normal again.

nizz
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Old 05-08-2000, 05:41 PM   #2
Eric Gagnon
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Join Date: Jun 1999
Location: Saratoga Springs, NY
Vehicle:
2001 Jetta 1.8T
White

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It is: #4418

I installed a set several weeks back and they seem to work great.

Eric
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Old 05-08-2000, 05:56 PM   #3
rao
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Member#: 52
Join Date: Jun 1999
Location: Naperville, IL
Vehicle:
2005 Legacy GT
98 BMW 540i LS2/T56

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Does anybody have any idea what heat range these are or if they are available in other heat ranges?
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Old 05-08-2000, 09:00 PM   #4
Patrick Olsen
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Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

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Dumb question, but are there any tricks to replacing the sparkplugs? I bought some regular Bosch platinums, but after one look in the engine compartment I wasn't sure I wanted to bother with it yet. Did you have to move anything to get better access to the plugs?

As for the +4s, the Autozone where I bought my Bosch plugs also had the +4s, but I stuck with the conventional platinums.

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan
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Old 05-08-2000, 10:52 PM   #5
nizz
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Join Date: Aug 1999
Location: New York
Vehicle:
2004 Forester XT
24k gold on white

Post

Patrick,

If the GT looks anything like the Impreza under the hood, it should be quite simple. The passenger side plugs were easily accessible to me. You need a good grip and a yank to get the wires out. Then all you need ia a rachet, a 8 inch long .5 inch extension and a sparkplug tool to extract the spark plugs. As for the driver side, I removed the washer fluid reservoir by removing the two bolts that hold it in place to access the plugs. Remember to gap your conventional plugs to spec as per your owner's manual.

nizz
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Old 05-09-2000, 12:37 AM   #6
Rajah
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Member#: 362
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Cincinnati, OH
Vehicle:
2006 WRX STi
WRB / Gold

Question Bosch Platinum +4 Spark Plugs?

I remember a while back, a few guys said that they are using these in their RS's. I checked the <a href=http://www.boschusa.com/autoparts.asp?sgp=1 target=_blank>Bosch</a> site, and they don't have a listing for our engine. What's the part number for these plugs?

Thanks!

[This message has been edited by Rajah (edited May 08, 2000).]
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Old 05-09-2000, 06:10 AM   #7
Rajah
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Location: Cincinnati, OH
Vehicle:
2006 WRX STi
WRB / Gold

Thumbs up

Thanks guys, I think it's about time to replace my NGK's. I've read good things about these plugs, so if they're as good as the NGK's, I'll be happy
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Old 05-10-2000, 02:20 PM   #8
Patrick Olsen
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1997 Legacy 2.5GT
QuickSilver Metallic

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nizz,
Thanks for the assist. I took another look at things and I guess I was just being pessimistic with my first assessment.

Pat Olsen
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Old 05-10-2000, 02:24 PM   #9
Rajah
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Vehicle:
2006 WRX STi
WRB / Gold

Exclamation

Pat, make sure you add Anti-Seize to the threads of the plugs before installing them. You'll never get them out otherwise! Dielectric grease is also a good thing to add to the electrical connection end. Torque them down to 20 ft-lbs, after you've started them by hand!
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