Ok, I know the Stage 1 Tune should be first......... but, in what order should other upgrades be added. i.e. exhaust, IC, piping? and then once all the upgrades are completed, a re-tune?

I would love to just ship my car to HANN, and do it all! but Florida is a ways away

 

The torques gains of the mods will be learned out with the stock tune. So you need a stage 1 to realize any of the gains for the othere mods.