Hondata

I've got a newbie question here. So, I'm pretty new when it comes to tuning, but I'm planning to tweak my 2017 Honda Civic RS with a 1.5-liter turbo using the Hondata Flashpro. Once I get it installed, do I need to swap out any of the stock parts, especially if I'm cranking up the boost to 6 psi above the stock level? Also, could that potentially mess up my engine? Any other advice you can throw my way?

You should not need to make any changes to the parts.

What about in terms of engine reliability? Tuning won’t decrease the engine life?

IT should not as long as you are not making other changes that could alter the tuning or parts that might alter how it runs.