Here in Thailand JB4 on a Ranger raptor V6TT from 346WHP to 427WHP. I guess they use E85 their to avoid knock. see at 6minutes
427 WHP using a conservative 15% drivetrain loss would be 427/0.85= 502 Crank HP (engine horse power) and 650Nm
WHP = Wheel horse power
Im pretty sure the European version is just tune down by decreasing the boost compare to Australian, South asia version. So you could get same number by doing your custom tune on MAP6 by implementing same boost map as a Australian version.
I'm a VW guy in France and we use with Success the JB4 box on the GTI and R
I will Get a Raptor in Thailand where I spend 4month per year.
JB4 is super easy to go back stock to keep warranty on car just unplug it.
Did you see that JB4 has box for the raptor...