While I searched on here and didn't find anything on it, and I have my doubts about this in general; I want to make sure anyway.
I want to upgrade my alt, but while looking for higher output alts, came across a thread somewhere else where a guy had inquired about a higher output alt and Subaru Inc gave him some bs about the extra amperage potentially frying his ecu or something. I really have my doubts about this, but I just wanted to make sure no one is having problems with an alt upgrade.

link to the thread that instigated the thread you're reading: