The afm and injector mods kind of go hand in hand.
I would skip those unless maf-pro is on your list as well.
You can't just throw more air into the mix without upping the fuel along with it. Doing all of this with a walbro fuel pump may compensate without a fuel pressure regulator, especially since you're a turbo. As my walbro covers the arse end with that black soot.
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