Man, I did this operation 2 times in my 09.
If you are super carefull and confident on what you do, and has small hands and proper tool, it's possible to perform the operation without removing the oil and the cooling radiator. I'm not, and to avoid damages, I removed both. oil change will not be necessary, but cooling fluid will.
Remove side fairings (the job can be done in the side kick stand) remove both stock slipons, unplug and remove O2 sensor from the stock pipe. Remove both cooling and oil radiators. Cooling fluid will split, take care of it not to mess up your working environment.
There is a bolt under the catalitic area, in the midle of it (You will be able to see it by laying down on the ground), then remove the 8 bolts in the engine head.
Look at pictures of your new exhaust in order to assembly it correctly, then rebolt everything into the bike, reinstall radiators, refill cooling system, remove the air and reinstall fairing. You'll need about 4 hours for 1 man job. Unfortunately I only have a few pictures of the job. Good luck.
For service manual message me in whatsapp +5571992401885. The file is too large to be uploaded here.