FI questions from the other side; an xB turbo setup

[Bamboo]

I should probably delineate better questions lol my first ones were pretty general;

1. How reliable is this kit?

2. Ive heard that the AEM FIC was better than the greddy emanage that came with it but I read that quite a few yaris owners on these boards had issues with that piggyback. Any specific reasons why? Interaction with different ecus?

3. Any issues with melting stuff near the firewall due to the close proximity of the downpipe? Wrapping or ceramic coating advisable or preferred?

4. Will the stock injectors and fuel pump handle the fuel needs based on a 5 psi max on the Wastegate? Im not planning to push more than that, not going for big numbers... yet lol

5. Suggested oil weight to run at different times and temps of the year? I live in nj

6. Expected numbers to the wheels based on the 5psi max?

Im sure ill have more as discussion commences but that is just to start