High Output Alternator - 14.8v

Hi all! I have a 2020 Lexus ES350.

I have a sound system currently - 1500w. Adding two more 4 channels amps for a total of ~2300w.

I charge at around 14.1v.Right now I drop to about the 13s with moderate listening. This can go down to 12s during heavy listening.

I purchased a 300a alternator. I was given the option on a voltage regulator bypass at 14.8v. Manufacturer said likely the only downside would be a 'charging system' engine light.

Does anyone have any insight? Should I continue letting the computer regulate the voltage? Or should I opt in for the bypass at 14.8v.

Of note - plan on adding a 500f super capacitor as I've been told this would help mitigate voltage drop. I had a second AGM battery for the trunk, but I want to avoid adding another 66lbs as my current system adds plenty of weight already.