If you find such a place, I wouldn't necessarily trust it. You should contact Stinger. You'll have to pay a few hundred bucks for it, but they will build it to whatever amperage you desire. You may have to do some research on your car though. They require strict technical specs on the stock alternator. They do their best to make it fit like stock, while producing the desired result. It's definitely your best bet; they're the only credible company in that industry that I am aware of. If you need to cut costs, don't purchase a pretty unit. Just get the basic finish with the technical specs you require.

www.stinger-aamp.com