good gpa to transfer to gatech for mechanical engineering/ aerospace engineering

hello, i will be starting my freshman year at penn state. i will be taking the freshman mechanical engineering. i applied for gatech but i was rejected (i was shocked because my gpa was a 3.95 and sat was 2250). but anyways gatech was my first choice and i am planning on transferring there. i heard transferring to tech is very competitive, so i wanted to know, whats a good transfer gpa for mechanical or aerospace engineering? thanks