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#1
12-30-2007, 12:10 PM
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spark plugs
Hey guys i was woundering what spark plugs i should use in my car thanks.. 97 GTP
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#2
12-30-2007, 12:17 PM
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Re: spark plugs
On a GTP with the L67 engine it depends on if you are stock or modded. If stock the AC Delco Double Platinum or Iridium are a good choice. Also, look into the NGK TR55IX Iridium which are very popular. Also, Autolite copper core, AP and APP are good choices.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#3
12-30-2007, 03:39 PM
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Re: spark plugs
Stick with what the factory put in,AC Delcos
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#4
12-30-2007, 05:16 PM
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Re: spark plugs
Quote:
Just for clarification assuming that is what the factory installed in all L67 GTPs which is not true. At least 50% of GTPs delivered came with the NGK Laser Double Platinum PTR4B-15 spark plugs and not AC Delco. 
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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