Also, depending what you believe, the AXX uses forged piston rings, whereas the later models didn't.
Some say that makes the AXX worse, others say it makes it better.
Then you have the cam lobe wear issue, again, some say the AXX didn't suffer with this issue, only the 2006+ models, others will say all engine codes were affected.
Anyway, what nobody has said yet... Once you get the 5-6 hour remap, good luck, as you'll be going back to buy the full version VERY soon after! :D
Im resisting a trial map for now for that very reason ;)