Some installers will offer an additional service of removing the DPF physically for you, either by gutting it or replacing it with a new section minus the DPF, but not all, you need to talk to your local installers really about what they offer.
The evolutions chips side of it is purely the software changes not the hardware.

Its VERY important that the hardware changes are done too, and no installer should be doing the software side unless either they do the hardware side as well, or they have assurance from the customer its already been done. Damage can result otherwise.