[Pringles]

Hey guys, i have a 435i with the mpe and res delete. I was wondering if removing the secondary cat will make any difference in sound? If so, how different? Im also debating opening the mpe muffler and straight piping the middle perforated pipe. Will it almost sound like its completely straight piped? What if i end up removing the secondary cat and remove the perforated pipe inside the muffler, how will it sound? I dont wanna remove the muffler completely as i wanna keep the valves and i plan on going catless soon as well. Just wanna make it as loud/deep tone as possible. Thanks