Originally Posted by atomos319
Your response assumes causation; the number of cars out there running around with tunes that DON'T have this problem suggest another cause is the culprit.
In my case, lets just say my mechanic found concrete evidence of an install error. Should my tune override their negligence?
What is that number? I don't think there is any sub 100k mile N54 with this sound that has NOT been overboosted. You are assuming people haven't had tunes run on their cars based on what? 99.9% of n54 owners on forums have a tune or have had a car that had had a tune on it before.