Well, biggest difference is the bottom end. 1G's have a 6 bolt bottom end, and 2G's have a 7 bolt. Those are the crankwalkers.
Exact same 4G63 motor though.
2G's havr a t25 on them, where as 1g's have a 14b. t25 = garbage.
1G is claimed to be 195hp and 2G 210hp.
You will regret a 2G. Trust me.
