Flat head screwdriver
microfiber towel (or similar)
torx bit driver
Step 1: Wrap the end of your flat head screwdriver with the towel and then insert it between the knob and boot as highlighted below.
Then simply twist the screwdriver and that side of the boot should come loose. Once it is loose you can pull down on the other side by hand and the whole boot should be off of the shift knob as highlighted below.
At this point you will need to use the torx head driver to unscrew the torx screw bit that secures the shift knob as highlighted below.
Once you have done that the shift knob will come right out. Replacing is even easier as you just need to put the replacement shift knob back on. tighten the torx screw and then pull the shift boot back into place. Done!
Please let me know if you have any additional questions or concerns.