Yep, I will be keeping the factory cat. I want to keep this simple. I will attempt to get a photo looking forward from inside the flange toward the cat, but I am not certain that the camera will focus or the flash will work looking inside a pipe. There is a flange located aft of the cat converter. You just remove the exhaust pipe at this flange(3 bolts), release the pipe and muffler from their rubber hangers and the OEM catback pipe, muffler and tips are on the floor. Start fabricating! For those without a shop and a mig or tig welder, any respectable muffler shop should be able to accomplish this in about an hour or so. AJUSA.com has the Magnaflow muffler in stock and the p/n is 14220, price is $128.38 with no shipping charges.