No worries, it's good to share :p
The 10-12kw gain for the Toda Header includes an after market metal substrate cat, so technically that's not one modification as some of the gains come from replacing the cat ;) Toda header, with metal cat all installed for $1500 also sounds a bit cheap?
I've got all the bolt-ons I want now, so tuning is the final piece of the puzzle. I almost feel guilty for not taking full advantage of some of the parts I have with a tune lol.
Negative captain... you're going to run into all sorts of driveability/reliability problems if you install stage2 camshafts without a proper tune. You might "get away with it" but there are very few workshops that would tell you installing cams without a tune is a good idea.