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Unread 05-06-2013, 10:01 PM   #1
aralph30
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2003 WJ 
 
Join Date: Apr 2013
Location: melville, ny
Posts: 600
Wj Spark Plugs

Hey guys i couldnt find any threads about this question sorry if im repeating one but i want to change my spark plugs for the best performance of my jeep what type should i put into it?

2003 Jeep Grand Cherokee Limited 4.7L V8

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Unread 05-06-2013, 10:31 PM   #2
Minnesota-WJ
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2002 WJ 
 
Join Date: Apr 2013
Location: Maple Grove, Minnesota
Posts: 22
a lot of people with WJ's use Champion Copper
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2002 WJ-- I6 4.0-- 245/75/r16 Firestone Destination A/T-- 2" RC BB-- 1.5" wheel spacers-- CB w/ 4' whip-- grill guard/ roof rack
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Unread 05-06-2013, 11:49 PM   #3
85IrocZ-28
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1999 WJ 
 
Join Date: Jul 2010
Location: Davis County Utah, UT
Posts: 3,933
Buy copper champions. Don't fall for the "High Performance" plugs that are out there, stick with the factory plug. Spend your performance money on intake and exhaust upgrades.
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*Project Yeti* 99 JGC Limited 4.7 w/6.5" Rockkrawler LA & IRO A-arm, Goodyear MTR 35's on MB TKO's, 4.56 Yukon's, Iceland Offroad Bumper/Flares/Sliders, Protofab Rear Carrier, SuperChips, Uniden/Firestick, Flowmaster, Smittybilt 8k Synthetic Line Winch.

My Jeep is Organic - Undercoated in 100% all natural Utah Dirt --- Utah Jeep Crew #49 ~Will
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