ok thats a bit dodgy then...

They told me that they would try put it through for me when I do need to change it, and went through the warranty book and they seemed to think that it would get covered as it's not a normal service item and the definition they have in the warranty handbook seems to refer to just like hose leaks, i.e. parts would be covered as in the gasket itself etc.

Best way to find out ring up 1300 632 567 and give them your rego number, they'll have your details, tell them what happened and if they would have covered that, if yes go and ask for refund/sue/shoot your dealer.

I rang last week and asked about modding, they're fine with it too just the modded part doesn't get covered...You're better asking the warranty guys directly and don't trust the dealer and what you hear people say.