plugs are personal preference, people tend to go with copper plugs on gtp's and change them every 3 oil changes. i wouldnt run a drilled thermostat, it wont help with kr if thats what youre looking for.
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04-20-2013
plugs are personal preference, people tend to go with copper plugs on gtp's and change them every 3 oil changes. i wouldnt run a drilled thermostat, it wont help with kr if thats what youre looking for.
04-20-2013
And also aren't the iridium ones better than copper?
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