TheAutumnWind
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- Joined
- Jan 8, 2015
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Installed AC Delco plugs, wires, and OEM boot shields, runs so much better, 160k miles think it's time for new coil packs?
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probably not needed. They don't really wear out. Either they work or they dont. No real performance gain for aftermarket high output units either, unlike with the older trucks that dont have COP.