That's a great write-up! Congrats on the tune, man
380 PS/ 520 NM seems a little low for 15 psi boost though. that's like 380 hp 380 lb ft at the crank, which other tunes seem to make at around 12-13 psi. though that might be with other bolt-ons..
Keep us updated as you drive more
Also..
I just wish I could have some autobahn over here to enjoy 6th gear on