4052

So it seems my regen is not operating right. My dash says to run at 1500rpm. First time I let it run a 1500rpm for 3 hrs and it didn't drop 1%. Had a tech stop out and after 4 hrs of run time was at 13%. Normally its been done around every 15 hrs. Starts itself on 78% . Takes 4 hrs to get...

I'm looking at a nice used 4052 but would like the extra power of the 4066. The Turbo, Injectors, fuel Pump, & ECU is all the same as far as I can tell for both tractors. Does anyone know somebody that can flash a 66hp tune on the 52? Can anyone tell me for sure if as a last resort I could order...