Like the title states, I have a N20 TMAP adapter for N54 motors and early N55's. This allows you to use the N20 motor TMAP which is a 3.5 bar vs 2.5 bar. I want to say stock TMAP's on N54 and N55 top out at 21.5psi.
Note: Yes, you can repin your stock connector, it's nothing new, if you want an easy plug and play, this is available.
Let me know!