mitsubishi montero denso d4d rpm update

[maruti]

hello
i have mitsubishi montero d4d ecu i want to update rpm 650 to 850
deatil below

Fuel Type Diesel
Engine Displacement (cc) 3200
Max Power (bhp@rpm) 191.3bhp@3800rpm
Max Torque (nm@rpm) 441Nm@2000rpm
TransmissionType Automatic
Body Type SUV


Max Power 191.3bhp@3800rpm
Max Torque 441Nm@2000rpm
No. of cylinder 4
Valves Per Cylinder 4
Valve Configuration DOHC
Fuel Supply System Common Rail Direct Injection
Turbo Charger
Gear Box 5 Speed
Drive Type 4WD

thanks