Keep in mind I dont always do things the easiest way and other members may have a better/easier way to do this. Anyway, here is my method used on my 07>
Hedman Hot Tips with 2" inlet, number 17120 at $23.95 each from Jegs. Autozone adapter number 17501, 2" I.D. by 2" O.D. $2.50 each.
The 2" OD fits into the inlet end of the Hedman and the 2" ID fits over the header pipe right up to the raised portion. You can attach the adapter to the Hedman with a couple of sheet metal screws. Drill a hole first. Make a bunch of slits in the other end of the adapter so your clamp will compress on to the header. I used good quality T-bolt clamps, not cheap radiator clamps.
A little slack in the fit between the adapter and the Hedman will allow you to move it a bit to clear everything. Trial fit it before you drill and you will see what I am talking about. The adapters dont show when they are mounted.
I also drilled a small hole through the adapter into the header and used a sheet metal screw through both just for insurance. Hopefully this is enough info to completely confuse you !
Here is a pic>