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		thanks for all the positive feedback.
so i presume both the tombrader and bruce davis options are a new eprom put onto the stock ecu?
And they just do an exchange basis?
or are any of them a re-flash? 
Are either of these options the one that Ricks 4x4 offers? Sounds like the ecu swap? (Bruce Davis?) 
Thanks very much all.
cheers
	 
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		Think it depends on the year.
	 
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		MSB prefix ECUs require a new chip (it is however, not an eProm chip)
NNN prefix ECUs are flash upgradable.
The biggest differences between mine and other options in Oz is the programming (and settings) of the mapping.