EGR Cooler thermostat removal

[V12noise]

Sorry if this is a basic knowledge question, but how do you get to the inner bolt on the egr cooler thermostat (red arrow). Do I need to remove the fitting pointed to by the yellow arrow? Or do I break the hose-clamps, remove the hose and replace them?

[Clavurion]

Both ways work. I've usually removed that vacuum connector from vacuum pump. Remove the screw and pull out. It has o ring as a seal. Do you have EGR still functioning normally or is it coded out?

[V12noise]

EGR is still operational. What do I need to code it out and what are the benefits? I have a Foxwell NT650 if that's any good for modifying the setup...

[Clavurion]

Blocking out EGR would mean remapping engine ECU. Main benefit no more soot pushed in the intake manifold and slightly more responsive turbo.