SL 350 with 55AMG end pots too quiet

Hello Community, I have a 350 and last year I converted it to Optic 55 AMG. I thought that it gets louder by the 55th end pots but it remained discreet I bought the stainless steel medium pots from Eisenmann (500SL) but they are a lot bigger than what I have inside from home and my mechanic thinks that it may become quieter by the larger volume. What can I do to make it sound better, I have a bunch of medium pots inside, What if I remove one? And if so, which one. Thank you