MST and CTS have the best design. If you read the main thread on inlets, you will see that several were tested and those came out on top.
https://f30.bimmerpost.com/forums/sh...1656337&page=8
Other ones are OK, and will be better than stock, but i would just wait for the "best" ones. Check various vendors to see if you can find one who has them.
The TIC does not fail like CP, but some people say the TIC swells/balloons when you get into higher boost levels. I can see why, it is quite thin and malleable. I didn't really notice a difference with the TIC change, more something i would just do while you are in there or if you have an issue.