Can I replace the stock resistor heater with one of these?
Would it require me to tweak the firmware or just drop-in?
What nozzle do you have on your machine? I have made this swap.
At the very least you will need to do a PID auto tuning but it is easy. See the links below.
https://www.lulzbot.com/support/fine-tune-your-marlin-pid-settings
Right now I have Budaschnozzle, but thinking about switching to E3D V6 or hexagon hot-ends. I might have to drill a hole for a set screw in the budaschnozzle to keep the cartridge in place.
Thanks for the insight, it seems if I changed, I would probably want to do so for all of my hotends to avoid doing this anytime I swap one out.