unless you are drag racing down your driveway or within the last few minutes of getting home, the turbos arent going to cool down much more. use a quality oil and drive it nice-ish for the last few minutes and you are good.
In the rare event I park right after a hard run, i just wait in the car for 60 seconds before shutting down. Saving that one minute of my life isnt worth leaving a very expensive car running unattended or hacking up all the ignition wiring and screwing with the vehicles security system.
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