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2004 Pontiac Grand Prix GTP



Look what I just found online!
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bandook said:
I don't know what 2004 uses. Just go to amazon and search for plugs for your car. Your car uses iridium plugs I think, so probably still good. Wires I would do if they were stock just because of the age of them. Uses ac delco brand plugs and whatever "premium" wires your parts store carries, or get ac delco.
Click to expand...
639a391f2f1be81f7a32772dfc9a814a.jpg
48df6aa1d5c0ae5b653159c8fdc726d9.jpg


So would these be good. I'm just going for mpg NOT show! ]Next thing are the spark plugs. ☺

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bandook said:
I don't know what 2004 uses. Just go to amazon and search for plugs for your car. Your car uses iridium plugs I think, so probably still good. Wires I would do if they were stock just because of the age of them. Uses ac delco brand plugs and whatever "premium" wires your parts store carries, or get ac delco.
Click to expand...
639a391f2f1be81f7a32772dfc9a814a.jpg
48df6aa1d5c0ae5b653159c8fdc726d9.jpg


So would these be good Chris? I'm just going for mpg NOT show! ]Next thing are the spark plugs. ☺

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Sparkplugs? Need those now.
I was advised to get TR55 by Jameslvey24. That's the only suggestion I got other than to make sure they're copper which I'm having a hard time with!
I'll get these ACDelco wires, just unsure of the sparkplugs!
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Enough of the back and forth stuff here, if you want to be at stock as can be with no questions on quality of parts and the best performance from said parts, buy the stock spark plugs.

AC Delco 41-101 Iridium plugs are the best plugs hands down. GM wouldnt put them in the cars if they didn't think that. They are good for 75-100k miles. Those AC Delco 7mm are stock replacements aswell and are the best quality for a stock vehicle, again GM decided they work great and they are proven to do so.
 
Ty, I just have no Owners Manual. I'm putting a lot of trust in this forum as I've always believed the best advice is from the owners themselves!

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I was advised to go with these, so I did. It's pretty much stock. ☺

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