Re: (Trich1237)
I unfortunately am still on the 90amp alternator and will be doing at least the 120amp alternator upgrade just to be on the safe side. In the 3 1/2 years I've had my car I have had no issues with the alternator whatsoever, even after I drained my battery running my system without turning on the engine.
As for the one who mentioned the dimming headlights, look into getting a capacitor. I had that problem installed a 1 farad capacitor and lived with it for awhile even though it didn't solve the problem. I got lucky and got a great deal ($125) on an Audiobahn 12 farad capacitor and have had no problem with the "dancing lights" since it was installed. The 12 farad is overkill for what I have; 2 12" Oz Audio subs powered by an MTX 1501D amp, Kicker KS 6.2 components in the doors, 4 band equalizer, and a Panasonic head unit w/7" lcd display, but at least I know I can grow into it in the future.