I'm not sure if these BBK cat delete pipes are revised or not, honestly. I just sent a message to my BBK Purchaser to find out if there's any changes made. Unfortunately, he's out until Monday morning 1/7/13, so I'll have to get back to you then.
Sorry for the delay, give me a shout if there's anything else I can do in the meantime, otherwise I'll post back ASAP!
Just got an update. Apparently the current ones we have work perfectly for 2011's, but have issues with 12-13 without slight modification. BBK has already built and producing a revised set that will fit 11-13 easily without the previous issues. Unfortunately, I don't have a ETA for that date, but it won't be long.