Why decrease psi with the HPFP installed? Just run the stage 2 OTS till you get bored, then get a real e-tune!
You have a 2013 build, so pretty new turbo. Might smoke, might not, but you will more than likely get a few years out of it before it does. There are plenty on here with TBE and stock turbos without smoking.
And no, safe mode won't help one bit. Raise idle, if it starts to smoke, buy the bolt. If that doesn't work, then go full-on bug turbo crazy!
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