Best plugs for a 4.8
#21
I've bounced between copper, platinum, and iridium with no noticeable difference. The only benefit to platinum and iridium over copper is longer life.
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lucas287
Tuning, Diagnostics, Electronics, and Wiring
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Jan 12, 2021 06:18 AM
legerwn
Tuning, Diagnostics, Electronics, and Wiring
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