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Discussion Starter #1
Are the factory plugs in the 2005 GTOs pretty good, or should I be looking at a replacement set? Will I notice any difference? Finally, does anyone have recommendations for nice plugs? (I hear NGK all the time.)
 

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IMO its a waste of money.
The stock plugs are very good.
Many rave on the NGK TR55. Personally, I tried them...hated them and put the originals back in. But thats just me. :cheers
 
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