I really wouldnt waste the money buying a higher output alternator if your amp isnt rated that high... I think my amp is rated at 1200 watts (of course it probably never pulls even close to that much), and im fine. I had a 2000 cavalier and had 2 15" kicker solobarics and a 1200 watt mtx amp running off the stock alternator with no issues. You will probably notice the very slight diming of the headlights from time to time when your sitting at a light or parked, but you should be fine. If your that concerned, you can just pick up a cheap capacitor. Just my 2 cents anyways.
