[1320racer]

I made the decision to move forward beyond the currently installed DINAN piggy-back.

I am scheduled to have baseline dynos and then a Stage 2, 93 octane tune installed by Tuning Tech (TTFS) on Monday, June 22, 2020.
These are the BMW platforms they support.

I've heard great things about Frank Smith's shop. He has a vast amount of experience with our F10 M5 platform, many other platforms, and most important, his shop provides stellar post installation support.

In addition, I have spoken with another forum member (Jus10Blake) who had work performed by a north eastern US shop. Unfortunately, the other shop was not able get Jus10Blake's M5 to perform well and caused several odd coding/electrical issues (example: windows would not function). Frank spent extra time, at a very reasonable rate, to determine the cause and correct the vehicle's coding/electrical issues. And yes, Frank was able to get Jus10Blake's f10 M5 running EXTREMELY well too.

I will document my experience with TTFS and report back to the forum.