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Old 04-13-2016, 04:18 PM
babyduke babyduke is offline
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Join Date: Jul 2005
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Spark plugs brand: NGK vs NGK Iridium vs Bosch

2005 X5 3.0i 126K miles

NGK BKR6EQUIP
NGK IRIDIUM BKR6EIX
BOSCH FGR7DQP

Which should I use? I see many recommendation for NGK Iridium but someone mentioned the Iridium part cannot touch the connector whatever that means. I thought for spark plugs, you basically remove the old part and screw back the new ones to a proper torque.

Also, are NGK spark plugs made in china?

Last edited by babyduke; 04-21-2016 at 12:12 AM.
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