2015 Subaru WRX Problems! help!!

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Hello all, I have a 2015 Subaru WRX (stock)

It all started a while back running rough (stuttering, bogging down, lack of power)

Now I start it and it bogs down and almost dies and sometimes does die especially once the car is warm (very stuttery acceleration, won’t rev past 3k once warm)

I’m at a loss and could really use the help..
it has a P0420 code and a P0172 code.
 
Were there any changes made to it just before the problems started?

If you're at a loss, what have you done so far?

What do the codes indicate (googles can help you)?
 

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