Spark plugs in and out made easy.

I have those exact same headers and that #5 plug is almost worse to get than the #7.
Putting the plug socket on the plug and then sticking the extension between the pipe and head works, but using the fuel line putting that plug back in without dropping it is nice.
This is what I use , you have to take the rubber or foam protector out of the center of the socket to get it over the plug.

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