Purchased a 17 is200t f sport, never owned a turbo car and I have no clue. Turbo guage fluctuates a lot under medium to heavy acceleration. 2. Can hear blow off, is that stock or does that mean a aftermarket BOV was installed? I'm just lost with this car.

 

Sounds normal. I previously had a 2017 and a 2020. Boost gauge was always pretty much moving, even into orange sometimes. The blow off valve, though not too loud, could always be heard during acceleration/shifting.

 

Strange turbo noises are part of the fun.