I know that the M119 on the prevous E420 had a double air intake and that the E55 has a double air intake.
Any reason the 1997 E420 just has a single air intake? Would it make sense to retrofit the air intake of the 1994-1995 M119 on the 1997 one. It seems that it would drastically increase air flow - but maybe more airflow is not needed . . .