Gday Guys,
Well I haven't done many KM since but I would be around the 13l per 100km.. The only other place that I know of that has a dyno and I have heard that they are ok are http://www.brisbanetuning.com.au/ . As for my 4.2 it still pulls like a $5 hooker and brings a huge smile to my face every time I drive it :-)).
When I rang and spoke to each place the blokes at AMMS/roosystems just sounded more experienced..
Lewy