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I have a 2000 camaro z28 m6 just wondering what plugs work best in the car. My only mods are slp loud mouth slp lid and msd spark plug wires and K&N filter. thanks guys
Majority on here will tell you either the NGK TR55's or the AC Delco's. Try a search for spark plugs and you can read a boatload of info and debates on plugs then decide.