Had anyone needed to upgrade their alternators to a high amperage? I've got gauges, hids, sub and amp, and I want to make sure ive got enough power going through the car while driving it. My tune sometimes takes a **** and goes rich and then ill have to reload the map onto my s300. I don't know if this is because of a voltage loss or something else electrical. If anyone has upgraded, where did they get their alternators from?