ECU Reprograming available?

[angleiron4]

I have a 2004 250XS, and was wondering if the ECU's can be reprogrammed to turn the higher RPM's that the 2005's now run at?

[msj21xd]

based entirely on what i've read on other threads & not personal technical experience, the answer is no. i'll stand corrected if someone has figured it out at this time. there's something about the compressor ?? that doesn't work.

[Techno]

Not that it matters but your not supposed to do anything to any OB built after what 2000? An emissions law.