[firestarter2]

I don't know your back ground in modding but unless you wires are running near an exhaust heat wrap is over kill and often looks tacky. You can get the braided expanding wire covers and heat shrink the ends for that professional look. Also when in doubt solder wires long term the ez connectors become a failure point.

I think you need a build plan it seems like you just want to do everything which will have you car down more then it's up.

Do you want a track car? Drag car? What's the goal.

A bigger turbo won't be linear. And if it's not efficient where you want to be it may be pointless. Just my thoughts.