Got my box put in today set it on download #9 what is the difference between a minor mod engine, generally mod engine, and an aggressively mod engine?

2005 America 145 mains, , #48 pilots, , k&n pod filters, ported intakes manifolds, nology coils and wires, pro com CDI, 62 HP at wheel 68,000 hard miles still runs great gone "traded"