EXCLUSIVE
It's war between Big Boi and his estranged wife -- the Outkast rapper does NOT want to shell out endless child support ... claiming she's perfectly capable of supporting herself.
As we reported, Big Boi's wife Sherlita Patton filed for divorce last year ... demanding FULL custody of their minor child (they also have an 18-year-old).
But Big Boi's not about to cave -- he just filed a response, saying their child would be better off with JOINT physical and legal custody.
As for child support -- Big Boi says he's willing to pay whatever the State of Georgia deems appropriate ... no more, no less ... because Patton's young, healthy, and well-educated ... which means she can support herself.
