I have searched, but didnt find any info on this. My alternator died on me yesterday and I need to replace it but the M3 alternator costs like $350. Does anyone know if there are any other alternators that could be put in its place for less. Or if i have to pay $350, is there a good upgrade available instead of factory? I am installing pulleys tomorrow and I want to change it out at the same time, but I'm running out of time and options since tomorrow is the only day i have to install the pulleys. Thanks in advance.