[boring-gts]

FWIW I went to an Indy shop near me and was quoted $500 for a plug swap on my GTS 4.0. 2hrs of labor.

I've DIYd all the services on my 718 so far and all (including plugs) on my 981 GTS so I never really let shops touch my car but this seems like a good exception. I hated doing the plugs on the 981 and it took several hours of fidgeting with extensions and wobble sockets.

Given its $100+shipping for the Porsche socket + $100+shipping for the plugs I'd be $200 in for just for the parts to do it myself.

Paying 2hrs of labor at $150/hr seems a very fair trade at the moment.

 

[boring-gts]

I guess that depends on your standards for confirmation. See post #30 below.

Have you personally tried the $17 socket with success? If not seems like a hasty conclusion to draw that the Amazon socket works.

Measurements are thicker than Rennlist measurements suggest will fit. So far the only people who successfully completed the job in that thread bought the $100 Porsche socket.