[f90arm]

What is the best exhaust I can do to increase noise alongside my secondary downpipes? Car is a '22 M5 Comp

Currently running ER Secondaries, been 3000 miles not a single issue car is slightly louder on pulls, crackles more, but not loud enough. I was thinking about doing a resonator delete and replacing the suitcase with a x-pipe or straightpipes but I don't want the car to sound horrible.

Any recommendations for a solid exhaust mod?