spark plugs... what ones are good
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since i'm putting on a set of lt's pretty soon here i might as well go ahead and do the plugs now. what plugs do you guys reccamend for these cars? i really like the sounds of the ngk iridiums. i've herd good things. not a huge bosh fan. what else to you guys use for a stock bolt on ls1?
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I just installed the NGK iridums. Nothing to report, really. No noticable change in performance. Still getting the same gas mileage as I did with the stock platinums with 80k miles that I replaced. For unmodified engines, plugs don't affect the performance of our cars. It's just a matter if you want to pay the extra $ for irdiums knowing that you wont have to change them for 100k miles.
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I was watching horsepower tv and they put in a set of E3 spark plugs and they said they saw a small gain and they had better gas mileage. not sure about the price tag or how true it is but you might want to look into it if you do let us know how they look.
Last edited by sappertodd; 04-26-2008 at 09:34 PM. Reason: correction