We have a lot of people buying Kooks headers and skipping the X-pipe to save money or work with a catback like Borla. What we have found works great if you want to keep the cats is Kooks Camaro connections. Basically these connections are 11.5" long and include a ball and socket connector to connect to any Kooks header with a 3" collector. They also include Kooks high flow cats, rear O2 bungs, and end in a 2" run of 2.5" diameter pipe to build whatever you want off of. The PT# is 6513 OEMC
You can buy these here. If your buying them with headers, we also can discount them some.
http://marylandspeed.com/kooks-3-x-2...mc-p-2676.html