[jmatta]

If you search the forum, you will find many posts on the topic. The big issue is that the O2 sensors are mounted before and aft of the cats you are about to delete; you will throw CEL when they are removed. The various posts will explain what others have tried and whether their remedies worked or not. I considered headers at one point, but didn't wish to deal with all the new issues that arose for what is likely a small HP gain.