Need advice : stage 2 concerns

Guys, just looking for some friendly insight to help put my mind at ease on some of my concerns



08 335xi , 43k , Giac stage 1 , intake, upgrades suspension. injectors and hpfp replaced.

Just changed plugs



Want to go with Giac stage 2 (I have the flash already so cost is not that much plus I like the tune)



Obviously I will purchase FMIC, DPs - w/dp fix, prob a CP (retain oem DVs)

All these mods purchasing from VRSF



Concerns that I've read online and in this forum :



Wastegate rattle after DP install



Seems like it's a huge pain in ass to dial in the DP fix correctly for emissions



I won't be able to eliminate codes w/ giac tune. (I do have a BT cable though)



Giac 2 is a moderate tune. Max boost is around 17/18 I read.



Obviously turbos are under warranty for 8 years so I have another 2 years. Just would hate them to fail in general. Even more so with all mods on



So long thread. Sorry. Any insight?

Other things to consider?

Everyone's car is different I know

Stop being a pussy and do it :)



Thanks