Upgrade?
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Junior Member
Joined: Mar 2023
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Upgrade?
I have a 2008 F150 XLT SuperCrew 4.6L V8. I am switching to straight wire for the spark plugs, so that leaves a bit of an opening where the boot fit. Is there something that can go around the spark plug, to fill the gap...to prevent anything from getting stuck in there (water, dust, leaves, etc)?
