how much does it cost to upgrade alternator?

I was curious. I havent had time to stop by any mechanic shops to ask so i thought i'd ask you all. About how much does it cost to upgrade alternator. What do the prices range from and around how much is the labor at a car shop.I kno this varies by location, size, car or whateva, but accurate estimates always help. Thank you all.

-------------
2005 Ford 500 SEL. 3 Kicker CVR 15"s. 2000 watt Quantum Audio AMP.

What kind of car is it, specifically? The alternator will run between 250 to 400 for around 150 amps to upwards of 300 amps... also will depend on where you buy the alternator, where you have it installed, etc. I charge $250 for a BASIC installation, but it could be more. Basic install includes a #4 alternator cable, and custom high current application-specific custom manufactured terminals all soldered and shrink wrapped. You want bugger wire? More money. You got custom performance parts to interfere with installation? More money. Basically, the $250 I charge covers up to 4 hours of labor, with parts. Additional labor will cost more - It always does. You need to be more specific than something as open-ended as your question.

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

I know in town they have a shop they will rebuild factory alternators to handle 50-100amps over stock, they charge between $150-$400 just to rebuild

-------------
2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place