[71400] Took Helen to Gill at Woodman Muffler in Arleta. The CAT did indeed have a huge hole in it and there was a big scrape, so someone ran over something they shouldn't have at some point! Got a new CAT and had them add a resonator back to the tailpipe. The original muffler had been replaced once and the resonator replaced with plain pipe. But the pipes were all solid enough to keep using. Amazingly, while the car *is* much quieter, there is still some rumble! Same deal, under power at freeway speeds! This is crazy! But, everything I have had done needed to be done; prices I paid were very reasonable and workmanship has been exceptional. I just wish this rumble was completely gone!