Smirgelis

Newbie here, with this skoda being owned for ~6 so far, and went 30k already. Car milage is 84k atm, pics are ofcourse related. Came here for general maintainance advice (I am changing oils every 10k). EA888.3 (european, facelift with 7g, 272hp). Im thinking of going stage 1 at first, and reliability is most important. I plan to drive around 60k km/year, and wish for car to last five years. Can I achieve that with minimum stage 1, like 300hp max to keep air to fuel ratio factory set, or can I aim for regular 350? I have googled that during stage 1 AFR is changed, and because of that there soot appears in oil, that degrades the engine faster. How much of that is true? Thanks for reply in advance! Any other advices for maintainance are welcome too, car doesnt consume oil (atleast for now, but I hope for futher 200k to be like that, will see how it will last).