You don't need to remove the primary cats to achieve this sound. I have the secondary cats and resonator removed replaced w/ an X pipe and it sounds just like this 55. Video on my page. I would only removed the primary cats for headers.
+quysweat Hi, I'm considering buying M6 E63 or CLS 55 AMG and in AMG - I want this sound. M6 is awesome screaming sound and AMG sounds serious. What did you put instead cats and resonator and where can I get X pipes. ?? What about muffler ? Best regards
