Pontiac GTO 2004-2006 - spark plugs
10-24-2005, 12:00 AM
hi i have a 2005 GTO and am wondering about the ngk spark plugs has anyone tried these yet on a 05 and if so how do you like them and where can i get some thnx
10-24-2005, 08:46 AM
I have used NGK TR55 plugs in my Formulas for several years they make 5- 10 more HP with them over the AC/Delco. I gap them at 47-48 instead of 55 and you do need to replace them every year.
10-24-2005, 11:16 AM
Would just doing plugs be ok or should the wires be upgraded too? Performance wise do wires do anything?
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