How often should i change my ngk v-power copper plugs? Turbo prelude....
i think it's been almost 20k miles since i installed the turbo with the current plugs...i've heard 15k miles or at least once a year...i've been having boost problems as of late as well...boggin at WOT...could this be the culprit?
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Snafu-Si
Forced Induction
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Jun 6, 2003 01:51 AM




