On a motor like that personally I prefer new manufacturers product. But with alternators the Ford brand on my mustang gt kept burning up so I went to discount. It lasted 10 years or longer. I just replaced it again late last year.
My luck is hit and miss. If it's a newer car I would probably go for new. The remanufactured are warranted for some time, usually like 30 days so you aren't covered for very long and you might end up doing the job again. If the warranty is like a year then it's not so bad but still.
You got a lot of bass in the trunk don't you