ok i dont know which to go with irridium or copper?
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From: Waukesha, Wisconsin
ok i dont know which to go with irridium or copper?
well i just got my 2.8 pulley in the mail and i am going to be getting the stage 2 kit but wasnt sure which plug is the best any advice would be very helpful 
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From: AZ
The coppers will not spark as hot and will not last as long. It is also much cheaper.
The Iridiums are a self cleaning plug so the electrode gets hotter and produces a hotter spark.
From what I have heard you have less chance of knock with the copper than the iridium, but I would think that would be more a matter of picking the right temp plug rather than the electrode material.
The Iridiums are a self cleaning plug so the electrode gets hotter and produces a hotter spark.
From what I have heard you have less chance of knock with the copper than the iridium, but I would think that would be more a matter of picking the right temp plug rather than the electrode material.
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