Can you tune the car for two different boost setting. I want to run 27 lbs of boost on my high setting and 15 lbs on low boost on my greddy profec S. Do i have 2 different maps or does the high boost setting good for the low boost ? I think it would be, but wasn't sure since your boost will be different thru the rpm band.

 

You need to really read the notes and think about what they say.

Map Ref determines vacuum to boost and is set in Settings 3.
Normally P10 row is 0 psi. You can set them to any range spread you want.
The PFC uses a different P row for different boosts.
I can run four boost settings because my Blitz EBC has 4 settings.
Thus I set and tuned: 11, 13, 15, 15.5psi boosts.
They all use the same maps, just different sections of it.

The human mind uses different parts of the brain for different tasks (hopefully).
So the PFC maps covers different driving conditions in different parts of the same maps.
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You will also need a 3bar map sensor that can read boost that high.
When you want to run over 15psi boost, you must run race fuel and have that part of the map tuned just for it. Same as for 15psi and less, is tuned for 93 octane street gas.