I think it's more because if you are opening up the engine anyway, might as well go stronger if available and stop a potential problem.

I haven't scene anyone having head lifting problems, but has anyone really investigated whether or not it's an issue?? I feel like everyone is too busy focusing on that fact that stock N54s are hitting 700 WHP and having no issues, but we're strictly evaluating that from a tuning perspective (EGTs, Clean Data Logs, etc). It's not like the S65, where Gintani recognized the heads were lifting with high boost builds.

I imagine that if someone raised the N54 redline up to 8k RPMs and paired it with the Vargas Stage 3s/Single Turbo, lifting heads could become an issue. I agree that head studs won't "assist" in raising the redline, but the OEM headstuds will be beyond their capabilities at that point and it'll just be another necessary component when upgrading the motor to those levels.