Fellow members, I have a question, what is the purpose of the second set of catalytic converters? I'm talking about the ones inside the muffler... and I would appreciate if someone has a picture or drawing of the cayman/boxster muffler cutted in half horizontally. This is because I'm thinking what could happen If the muffler is cutted in half, then have the second set of catalytic converters removed and fit straight pipes instead. I think the exhaust may sound very good, plus less back pressure. What do you all think about it? Thanks in advance!