Something else to consider, especially if you're increasing your boost pressure, is to upgrade your PCV (
https://www.ecstuning.com/b-vargas-t...t-n54-pcv~vtt/). The stock one leaks and lets oil back into the intake and clogs your intake valves. The n54 is a direct injection engine and the intake valves don't have gas sprayed across them so they don't get cleaned up. At 40k miles I had to pull my intake and blast the valves and ports with ground walnut shells to get the black tar off so my valves would seat properly and I'd get better air flow. It ran rough before and super smooth after. You can also look at using a spray cleaner you put into the intake pipe (after the MAF before the intake)
https://www.amazon.com/CRC-05319-Int.../dp/B00PHNQKR2. Recommendation is every time you change your oil. After spending several days to clean out my valves by hand I use it regularly.