hey if you read in the audio section and others it is a well known fact that the stock alternator is plenty for basically everyone out there. It is rated at 135, which is quite a bit.
The weak link is wiring...so even if you buy a high performance alternator you will still need to upgrade that. Buy 0 guage or 4 guage and upgrade all the wiring from battery to alternator and you should be good to go.
