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#2
02-19-2005, 09:43 AM
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Re: ngk irridium
ive never heard about ngk but the bosh ones are terrible in my experiance. My brother put them in his blazer and he got far less gas milage and no more power. I kind of think performance spark plugs are a joke unless you have a highly modified engine with a full upgraded ignition. Then mabye theyll work,but this is just my experience mabye others have had better luck with them.
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#3
02-19-2005, 10:19 AM
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Sorry it took so long...
the irridium plugs are for engines with HIGH cylinder pressres AKA turbocharged,supercharged. You have to have one hell of a system to require the irridium plugs. I run 25-30 PSI on AC delco RTS 42. irridium fires better under pressurse but does not affect anything other than that.
__________________
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ngk irridium
