submitting test scores

I will be applying for NYU regular decision as an international student.

I took the SAT (which wasn’t that good, 1950) and will take the ACT in december.
Should I submit the SAT/ACT scores, or are the final exams of my school sufficient? I attended a German school and took the Abitur exams with an average of 1.5…

Only the school can answer that for sure, but I would expect most US universities will want ACT/SAT scores, unless they are test optional schools.