I have a 2018 971 3.0L Sport Turismo and was hunting the best bang for the buck. I’m not close to the big shops for a convenient trip to get a live/laptop tune. What’s worked best for you?

 

If you have no good tuner within a reasonable distance there are reputable shops that have good tunes and you can send them your ecu for programming. Not ideal but workable if you are handy enough to remove and replace your ecu.

 

If im not wrong the engine should be the same as the audi so you can look for audi tunes

 

Check out www.racechip.us. I have used it on two Panameras. It works as advertised. EZ/PZ to install, really a no brainer. RaceChip supplies you with a "plug" that takes all of 30 sec to install and reverts everything back to bone stock OEM.