I've got a 2006 3.5l and so far I have replaced the stock suitcase muffler with a flowmaster 40 and removed the rear resonator. It seems that my next option would be headers and a high flow cat. I know there are headers out there for the 3.5l v6, but I haven't come accross any high flow cats for our chargers. Does anyone make some for our v6's? Can the high flow cats for the hemi guys be modified for us? If not, has anyone cleared out their stock cat and has there been any problems like throwing codes when you did so? Thanks!