Originally Posted by bjspinner

I am after some advice on changing from a 13.5 ver3 to the 13.5 MMM.

As the MMM has more timming and I run 0 timming on the ver3, what is the best way to tune to the latest software.

With 10deg more timming am I better to wipe 10 off boost timming or 10 off turbo timming. How about 5 off each?

What is ballpark gearing change going from ver3 to MMM. Say drop 2 teeth or add 2 teeth.